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5-Br-PAPS 5-Br-PAPS, 2-(5-Bromo-2-pyridiylazo)-5-[N-n-propyl-N-(3-sulfopropyl)amino]phenol, disodium salt, dihydrate [CAS:91599-24-5]

    Chemical Name: 2-(5-Bromo-2-pyridiylazo)-5-[N-n-propyl-N-(3-sulfopropyl)amino]phenol, disodium salt, dihydrateCAS: 81608-06-2 (free acid)Appearance: Orange or reddish-brown crystalline powderAbsorbance (0.01 mmol/l): ≥0.420 (around 449 nm)Absorbance (0.01 mmol/l): ≤0.040 (at 552 nm)MW: 537.34, C17H19BrN4Na2O4S,2H2OStorage Condition: ambient temperature, protect from metal and moisture Shipping Condition: ambient temperatureProduct Description5-Br-PAPS, a water-soluble derivative of...

    ALC ALC, 3-[N,N-Bis(carboxymethyl)aminomethyl]-1,2-dihydroxyanthraquinone [CAS: 3952-78-1]

      Chemical Name: 3-[N,N-Bis(carboxymethyl)aminomethyl]-1,2-dihydroxyanthraquinone CAS: 3952-78-1Application: F- detection, colorimetricAppearance: Yellowish orange or Yellowish brown powderAbsorbance (0.10 mmol/l, pH5.1): ≥0.420 (around 430 nm)MW: 385.32, C19H15NO8Storage Condition: ambient temperature, protect from light Shipping Condition: ambient temperatureChemical StructureProduct DescriptionALC is utilized for colorimetric detection of fluoride ion. A red solution of the La(III) or...

      Arsemate Arsemate, Diethyldithiocarbamic acid, silver salt [CAS: 1470-61-7]

        Chemical Name: Diethyldithiocarbamic acid, silver salt CAS: 1470-61-7Appearance: Yellow powderPurity: ≥98.0% (Titration)MW: 256.14, C5H10AgNS2 Storage Condition: ambient temperature, protect from lightShipping Condition: ambient temperatureChemical StructureProduct DescriptionArsemate is soluble in pyridine and chloroform, but insoluble in water and other organic solvents. For arsenic detection, a 0.5% Arsemate/pyridine solution is used. The sample should be treated with sulfuric acid,...

        Azomethine H Azomethine H, 8-Hydroxy-1-(salicylideneamino)-3,6-naphthalenedisulfonic acid, disodium salt [CAS: 32266-60-7]

          Chemical Name: 8-Hydroxy-1-(salicylideneamino)-3,6-naphthalenedisulfonic acid, sodium saltCAS: 5941-07-1Appearance: Yellowish-orange or yellowish-brown crystalline powderAbsorbance (B complex): ≥0.900 (around 413 nm)MW: 445.40, C17H12NNaO8S2Storage Condition: ambient temperature, protect from light Shipping Condition: ambient temperatureChemical Structure Product Description Azomethine H is a colorimetric reagent for boron detection; it forms an orange complex with boron in aqueous solution....

          Bathocuproinedisulfonic acid, disodium salt Bathocuproinedisulfonic acid, disodium salt, 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthrolinedisulfonic acid, disodium salt, CAS 98645-85-3, CAS 52698-84-7

            Chemical Name: 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthrolinedisulfonic acid, disodium salt CAS: 98645-85-3Appearance: White or pale yellowish-brown powderAbsorbance (0.02 mmol/l): ≥0.740 (around 285 nm)Absorbance (0.05 mmol/l, Cu complex): ≥0.210 (around 480 nm)MW: 564.54, C26H18N2Na2O6S2Storage Condition : ambient temperature, protect from lightShipping Condition : ambient temperatureProduct DescriptionBathocuproinedisulfonic acid is a water-soluble analog of bathocuproine that emits...

            Bathophenanthrolinedisulfonic acid, disodium salt Bathophenanthrolinedisulfonic acid, disodium salt, 4,7-Diphenyl-1,10-phenanthrolinedisulfonic acid, disodium salt, CAS 98645-86-4, CAS:52746-49-3

              Chemical Name: 4,7-Diphenyl-1,10-phenanthrolinedisulfonic acid, disodium salt CAS: 98645-86-4 Appearance: White, pale pink, or pale brown powderAbsorptivity (Fe2+ free): ≥ 0.010 at 535 nmAbsorptivity (Fe2+ complex): ≥0.500 (around 535 nm)MW: 536.49, C24H14N2Na2O6S2Storage Condition : ambient temperatureShipping Condition : ambient temperatureProduct DescriptionBathophenanthrolinedisulfonic acid, disodium salt is a water-soluble derivative of Bathophenanthroline. It is insoluble...

              Bis(12-crown-4) Bis(12-crown-4), Bis[(12-crown-4)methyl]-2-dodecyl-2-methylmalonate [CAS: 80403-59-4]

                Chemical Name: Bis[(12-crown-4)methyl] 2-dodecyl-2-methylmalonate CAS: 80403-59-4 Appearance: pale yellow liquid Purity: ≥95.0% (HPLC; RI)MW: 662.85, C34H62O12Storage Condition : ambient temperatureShipping Condition : ambient temperatureProduct Description The NAS11-8 glass electrode is utilized as a selective sodium ion sensor. However, it is easily spoiled by biomaterials in sample solutions. Bis(12-crown-4), a sodium ionophore, is 100 times more selective for sodium than...

                Bis(benzo-15-crown-5) Bis(benzo-15-crown-5), Bis[(benzo-15-crown-5)-4-methyl]pimelate [CAS:69271-98-3]

                  Chemical Name: Bis[(benzo-15-crown-5)-4-methyl]pimelate CAS:69271-98-3 Appearance: White powder Purity: ≥98.0% (HPLC)MW: 720.80, C37H52O14Storage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionBis(benzo-15-crown-5) is a potassium selective ionophore. Its potassium ion selectivity is almost equal to that of valinomycin, which is a wellknown neutral carrier for the potassium ion in nature. This reagent, combined with NPOE as a plasticizer, is the...

                  Bisthiourea-1 Bisthiourea-1, 2,7-Di-tert-butyl-9,9-dimethyl-4,5-bis(N-n-butyl-thioureido)xanthene [CAS:187404-67-7]

                    Chemical Name: 2,7-Di-tert-butyl-9,9-dimethyl-4,5-bis(N En-butylthioureido)xanthene CAS: 187404-67-7Appearance: White or slightly yellow powderPurity: ≥98.0% (HPLC)MW: 582.91, C33H50N4OS2Storage Condition: ambient temperature Shipping Condition: ambient temperatureProduct DescriptionBisthiourea-1 is a chloride-selective neutral ionophore, and it is utilized for preparation of chloride electrodes. Bisthiourea-1 forms a 1:1 complex with chloride ion. The detection limit of chloride ion...

                    BT BT, 2-Hydroxy-1-(1-hydroxy-2-naphthylazo)-6-nitro-4-naphthalenesulfonic acid, sodium salt [CAS:1787-61-7]

                      Chemical Name: 2-Hydroxy-1-(1-hydroxy-2-naphthylazo)-6-nitro-4-naphthalenesulfonic acid, sodium salt CAS: 1787-61-7 Appearance: Black or blackish brown powderAbsorbance in borate buffer(1 mg / 100 ml, pH9): ≥0.400(around 620 nm)MW: 461.38, C20H12N3NaO7SStorage Condition : ambient temperatureShipping Condition : ambient temperatureProduct Description BT in aqueous solution changes color according to pH: red at pH<6, blue at pH 7-11, and orange at pH>12. Its proton dissociation...

                      C14-K22B5 C14-K22B5, 4,13-Bis[N-(1-adamantyl)carbamoylacetyl]-8-tetradecyl-1,7,10,16-tetraoxa-4,13-diazacyclooctadecane

                        ChemicalName: 4,13-Bis[N-(1-adamantyl)carbamoylacetyl]-8-tetradecyl-1,7,10,16-tetraoxa-4,13-diazacyclooctadecaneAppearance: White powder or solidPurity: ≥95.0% (HPLC)MW: 897.28, C52H88N4O8Storage Condition: -20ºCShipping Condition: ambient temperatureProduct DescriptionC14-K22B5 is the best magnesium selective ionophore. The PVC membrane stability is improved by this ionophore’s high lipophilicity due totetraoctadecane and adamantyl groups. C14-K22B5 has a linear response between 1x10-5 M...

                        Calcein Calcein, Bis[N,N-bis(carboxymethyl)aminomethyl]fluorescein [CAS:1461-15-0]

                          ChemicalName: Bis[N,N-bis(carboxymethyl)aminomethyl]fluorescein CAS: 1461-15-0Appearance: Yellowish orange powderFree fluorescein: To pass testMW: 622.53, C30H26N2O13Storage Condition: ambient temperature, protect from lightShipping Condition: ambient temperatureProduct DescriptionCalcein is a fluorescent metal indicator for calcium detection with EDTA titration. It is slightly soluble in water. The proton dissociation constants are reported to be pKa1=2.1, pKa2=2.9, pKa3=4.2, pKa4=5.5,...

                          Calcein Blue Calcein Blue, 8-[N,N-Bis(carboxymethyl)aminomethyl]-4-methylunbelliferone [CAS: 54375-47-2]

                            ChemicalName: 8-[N,N-Bis(carboxymethyl)aminomethyl]-4-methylunbelliferone CAS: 54375-47-2Appearance: White or pale yellow powderSensitivity: To pass testMW: 321.28, C15H15NO7Storage Condition: ambient temperature, protect from lightShipping Condition: ambient temperatureProduct DescriptionCalcein Blue is a fluorescent metal indicator in EDTA titration. It is highly soluble in alkaline solutions, but slightly soluble in water. Its proton dissociation constants are reported to be pKa1=2.45,...

                            Cesibor Cesibor, Tetrakis(4-fluorophenyl)borate, sodium salt, dihydrate [CAS: 25776-12-9]

                              ChemicalName: Tetrakis(4-fluorophenyl)borate, sodium salt, dihydrate CAS: 25776-12-9Appearance: White powderPurity: ≥98.0% (Grav.)MW: 450.21, C24H16BF4Na, 2H2OStorage Condition: 0-5ºCShipping Condition: ambient temperatureProduct DescriptionCesibor is a cesium ion selective tetraphenylborate compound, and is utilized as a precipitation reagent for cesium ion. Cesibor can precipitate only cesium ion from a mixture of ammonium, potassium, and cesium ions.Chemical Structure ...

                              Chlorophosphonazo-III Chlorophosphonazo-III, 2,7-Bis(4-chloro-2-phosphonophenylazo)-1,8-dihydroxy-3,6- naphthalenedisulfonic acid, disodium salt [CAS: 1914-99-4]

                                ChemicalName: 2,7-Bis(4-chloro-2-phosphonophenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonic acid CAS: 1914-99-4Appearance: Reddish brown or black purple crystalline powderAbsorbance (0.018 mmol/l): ≥0.530 (around 550 E570 nm)MW: 757.37, C22H16Cl2N4O14P2S2Storage Condition: ambient temperature, protect from metalShipping Condition: ambient temperatureProduct Description Chlorophosphonazo-III is a colorimetric reagent for thorium, uranium, lanthanoids, actinoids, and alkaline earth metals....

                                Co(III)-5-Cl-PADAP Co(III)-5-Cl-PADAP, Bis[2-(5-chloro-2-pyridylazo)-5-diethylaminophenolato]cobalt(III) chloride [CAS: 81342-98-5]

                                  ChemicalName: Bis[2-(5-chloro-2-pyridylazo)-5-diethylaminophenolato]cobalt(III) chloride CAS: 81342-98-5Appearance: Dark purple crystalsMolar absorptivity: ≥84,000 at 585 nmMW: 701.92, C30H32Cl3CoN8O2Storage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionSince Co(III)-5-Cl-PADAP is not influenced by chloride or nitrate ions, it is suitable for the colorimetric determination of anionic detergents in seawater. Anionic surfactant can be determined at the...

                                  Cu-PAN Cu-PAN, Mixture of Cu-EDTA and PAN (11.1:1)

                                    ChemicalName: Mixture of Cu-EDTA and PAN (11.1:1)Appearance: Grayish red brown or yellowish brown powderAbsorbance: ≥0.500 (around 470 nm)Storage Condition: ambient temperature, protect from metalShipping Condition: ambient temperatureProduct DescriptionCu-PAN, a mixture of Cu-EDTA and pyridylazo-naphthol PAN, is a very popular metal indicator for chelatometry. Usually, 20-50% aqueous dioxane (or isopropyl alcohol) or 50-70% aqueous methanol (or ethanol) is used as a solvent (1 g Cu-PAN per...

                                    Cyanoline Blue Cyanoline Blue, Mixture of monopyrazolone and bisbyrazolone (12.5:1)

                                      ChemicalName: Mixture of monopyrazolone and bisbyrazolone Appearance: White or pale yellow powderSensitivity: To pass testStorage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionCyanoline Blue is a mixture of monopyrazolone and bispyrazolone. It is used as a colorimetric reagent for CN- detection. The detection range of CN- by this method is 5 ppb to 10 ppm. The maximum wavelength is 620 nm. A ready-to-use solution can be prepared by dissolving 0.27 g...

                                      DAN DAN, 2,3-Diaminonaphthalene [CAS 771-97-1]

                                        ChemicalName: 2,3-Diaminonaphthalene CAS: 771-97-1Appearance: White or pale yellowish brown powderMW: 158.20, C10H10N2Storage Condition: -20ºC, protect from lightShipping Condition: ambient temperatureProduct DescriptionDAN is a highly selective colorimetric and fluorometric reagent for Se detection. This reagent is almost insoluble in cold water and alcohol, but it is higly soluble in water at 50ºC. DAN forms 4,5-benzopiaselenol by the complex with Se, and this complex is extracted with...

                                        Diantipyrylmethane Diantipyrylmethane, Di(4-antipyryl)methane, monohydrate [CAS 1251-85-0]

                                          ChemicalName: Di(4-antipyryl)methane, monohydrate CAS: 1251-85-0Appearance: White crystalline powderPurity: ≥99.0% (HPLC)MW: 406.48, C23H24N4O2, H2OStorage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionDiantipyrylmethane is a colorimetric reagent for Ti detection, and is also used as a gravimetric and solvent extraction reagent for various kinds of metal ions. This reagent is readily soluble in mineral acids and organic solvents, and slightly soluble...

                                          Dibenzyl-14-crown-4 Dibenzyl-14-crown-4, 6,6-Dibenzyl-1,4,8,11-tetraoxacyclotetradecane [CAS: 106868-21-7]

                                            ChemicalName: 6,6-Dibenzyl-1,4,8,11-tetraoxacyclotetradecane CAS: 106868-21-7Appearance: White crystalline powderPurity: ≥98.0% (HPLC)MW: 384.51, C24H32O4Storage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionDibenzyl-14-crown-4 is 200 times more selective for lithium than for sodium or potassium. Though Dibutyl-phenanthroline is 1,000 times more selective for lithium than sodium at a controlled pH, Dibenzyl-14-crown-4 is less pH-sensitive.Selectivi...

                                            HDOPP-Ca HDOPP-Ca, Bis(4-n-octylphenyl)phosphate, calcium salt

                                              ChemicalName: Bis(4-n-octylphenyl)phosphate, calcium saltAppearance: white powderMolar absorptivity: ≥3,600 at 270 nmMW: 987.29, C56H84CaO8P2Storage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionHDOPP-Ca is a liquid cation exchanger for use in the calcium ion selective electrode. HDOPP is the most suitable compound among the dialkyl phosphate derivatives, and is used in either a liquid membrane or a PVC membrane using DOPP (dioctylphenylphosphate...

                                              HFPB HFPB, Tetrakis[3,5-bis(1,1,1,3,3,3-hexafluoro-2-methoxy-2-propyl)phenyl]borate, sodium salt, trihydrate [CAS: 120945-63-3]

                                                ChemicalName: Tetrakis[3,5-bis(1,1,1,3,3,3-hexafluoro-2-methoxy-2-propyl)phenyl]borate, sodium salt, trihydrate CAS: 120945-63-3Appearance: White crystalline powderPurity: ≥95.0% (Titration)MW: 1836.65, C56H36BF48NaO8, 3H2OStorage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionHighly lipophilic tetraphenylborate (HFPB) is a very stable anion in a wide pH range. It is used as a cation phase transfer reagent. Vitamin B12 electrode in which HFPB was...

                                                HNB HNB, 2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3,6-naphthalendisulfonic acid, trisodium salt [CAS: 63451-35-4]

                                                  ChemicalName:2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3,6-naphthalendisulfonic acid, trisodium salt CAS: 63451-35-4Appearance: Black purple powderAbsorbance (Ca complex): ≥0.310 (around 562 nm)Purity: pass testMW: 620.48, C20H11N2Na3O11S3Storage Condition: ambient temperature, protect from metalShipping Condition: ambient temperatureProduct DescriptionHNB is a metal indicator for calcium, and a colorimetric reagent for alkaline earth metal ions, rare earth metal ions, and uranium ions....

                                                  Kalibor Kalibor, Tetraphenylborate, sodium salt [CAS: 143-66-8]

                                                    ChemicalName: Tetraphenylborate, sodium salt CAS: 143-66-8Appearance: White crystalPurity: ≥99.5% (Titration)MW: 342.22, C24H20BNaStorage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionKalibor is utilized for gravimetric analyses of K+, Rb+, Cs+, NH4+, amine compounds, alkaloids, onium compounds, and other monovalent ions, such as Ag(I), Cu(I) and Tl(I).Chemical Structure ...

                                                    Murexide Murexide, Purpuric acid, ammonium salt [CAS 3051-09-0]

                                                      ChemicalName: Purpuric acid, ammonium salt CAS: 3051-09-0Appearance: Reddish or dark reddish purple powderAbsorbance (0.018 mmol/l): ≥0.200 (around 525 nm)Sensitivity: To pass testMW: 284.19, C8H8N6O6Storage Condition: ambient temperature, protect from metalShipping Condition: ambient temperatureProduct Description of Murexide and MXMX is a 1:250 mixture of Murexide and potassium sulfate. Murexide is a metal indicator for Ca, Co, Cu, Ni, Th, and rare earth metals; it is also a...

                                                      MX MX, Mixture of ammonium purpurate and potassium sulfate (1:250)

                                                        ChemicalName: Mixture of ammonium purpurate and potassium sulfate Appearance: Pink or reddish purple powderAbsorbance: 0.150 E0.200 (at 525 nm) Sensitivity: pass testStorage Condition: ambient temperature, protect from metalShipping Condition: ambient temperature Product Description MX is a 1:250 mixture of Murexide and potassium sulfate. Murexide is a metal indicator for Ca, Co, Cu, Ni, Th, and rare earth metals; it is also a colorimetric reagent for calcium and rare earth metals. Murexide is...

                                                        Nitro-PAPS Nitro-PAPS, 2-(5-Nitro-2-pyridylazo)-5-[N-n-propyl-N-(3-sulfopropyl)amino]phenol, disodium salt, dihydrate [CAS: 143205-66-7]

                                                          ChemicalName: 2-(5-Nitro-2-pyridylazo)-5-[N-n-propyl-N-(3-sulfopropyl)amino]phenol, disodium salt, dihydrateCAS: 143205-66-7 (as an anhydride)Appearance: Dark green or dark greenish-brown powderPurity: ≥90.0% (as anhydride)MW: 503.45, C17H19N5Na2O6S, 2H2OStorage Condition: ambient temperature, protect from light and moistureShipping Condition: ambient temperatureProduct DescriptionNitro-PAPS is a highly sensitive colorimetric reagent for Fe(II) detection that forms a water-soluble...

                                                          Nitroso-PSAP Nitroso-PSAP, 2-Nitroso-5-[N-n-propyl-N-(3-sulfopropyl)amino]phenol [CAS 80459-15-0]

                                                            ChemicalName: 2-Nitroso-5-[N-n-propyl-N-(3-sulfopropyl)amino]phenol CAS: 80459-15-0Appearance: Yellow or yellowish brown powderPurity: ≥97.0% (Absorbance)Molar absorptivity (Fe2+ complex): ≥44,000 (around 756 nm)Absorbance (Fe2+ free, Blank): ≤0.050 (around 756 nm)MW: 302.35 C12H18N2O5SStorage Condition: 0-5ºC, protect from metalShipping Condition: ambient temperatureProduct DescriptionNitroso-PSAP is a highly sensitive water-soluble colorimetric reagent for Fe(II) detection that forms a...

                                                            NN NN, 2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthoic acid [CAS: 3737-95-9]

                                                              ChemicalName: 2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthoic acid CAS: 3737-95-9Appearance: Black purple powderAbsorbance (0.046 mmol/l, in MeOH): 0.600 E0.800 (around 555 nm)MW: 438.41, C21H14N2O7SStorage Condition: ambient temperature, protect from lightShipping Condition: ambient temperatureProduct DescriptionNN is a colorimetric and chelatometric reagent for calcium (pH 12, λmax=470 nm) and UO22+ (λmax=570 nm, ε=1.36x105). Although NN is soluble in water, the solution is...

                                                              NN diluted with potassium sulfate NN diluted with potassium sulfate, Mixture of NN and potassium sulfate (1:200)

                                                                ChemicalName: Mixture of NN and potassium sulfate Appearance: purple powderAbsorbance (1 g / 1000 ml, 550 nm): ≥0.150Sensitivity: pass testStorage Condition: ambient temperature, protect from metalShipping Condition: ambient temperature

                                                                o-Phenanthroline o-Phenanthroline, 1,10-Phenanthroline, monohydrate [CAS: 5144-89-8]

                                                                  Chemical Name: 1,10-Phenanthroline, monohydrateCAS: 5144-89-8Appearance: white crystalline powderPurity: 99.0-101.0% (Titration)Sensitivity: pass testMW: 198.22, C12H8N2, H2OStorage Condition: ambient temperature, protect from metalShipping Condition: ambient temperatureProduct Descriptiono-Phenanthroline is a colorimetric reagent for iron detection. It is also used as a reagent for the solvent extraction of anions. This reagent is slightly soluble in water (3.3 g/l at room temperature)...

                                                                  PAN PAN, 1-(2-Pyridylazo)-2-naphthol [CAS: 85-85-8]

                                                                    Chemical Name: 1-(2-Pyridylazo)-2-naphthol  CAS: 85-85-8Appearance: Yellowish or reddish orange crystalline powderAbsorbance (0.040 mmol/l): ≥0.600 (around 470 nm)MW: 249.27, C15H11N3OStorage Condition : ambient temperature, protect from metalShipping Condition : ambient temperatureProduct DescriptionPAN is a metal indicator and colorimetric reagent for heavy metal and rare earth metal ions. This reagent is slightly soluble in acidic solutions and soluble in alkaline solutions. Its...

                                                                    PAR PAR, 4-(2-Pyridylazo)resorcinol [CAS: 1141-59-9]

                                                                      Chemical Name: 4-(2-Pyridylazo)resorcinol CAS: 1141-59-9Appearance: Yellowish orange or orange-red powderAbsorbance: ≥0.450 (around 385 nm)Sensitivity: To pass testMW: 215.21, C11H9N3O2Storage Condition : ambient temperature, protect from metalShipping Condition : ambient temperatureProduct DescriptionPAR is a metal indicator and colorimetric reagent for heavy metal ions. The solubility of this reagent in water (5 mg per 100 ml at 10ºC) is higher than that of PAN. PAR is slightly soluble...

                                                                      PC PC, 3,3-Bis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolphthalein [CAS: 2411-89-4]

                                                                        Chemical Name: 3,3 EBis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolphthalein CAS: 2411-89-4Appearance: White or slightly yellowish pink powderAbsorbance (Ba chelate): ≥0.800 (around 578 nm)Absorbance (Blank): ≤0.090 (around 575 nm)MW: 636.60, C32H32N2O12Storage Condition: ambient temperature, protect from metalShipping Condition: ambient temperatureProduct DescriptionPC is a colorimetric reagent and metal indicator for alkaline earth metal ions. This reagent is slightly soluble in water...

                                                                        PR PR, Pyrogallol Red [CAS: 32638-88-3]

                                                                          Chemical Name: Pyrogallol Red CAS: 32638-88-3Appearance: dark reddish-brown or dark purple powderSensitivity: pass testMW: 400.36, C19H12O8SStorage Condition: ambient temperature, protect from metalShipping Condition: ambient temperatureProduct DescriptionPR is a colorimetric reagent and indicator for heavy metal ions and rare earth metals. This reagent is hardly soluble in water and alcohol, and insoluble in organic solvents. The color of PR in aqueous solution is orange-red in weak...

                                                                          SATP SATP, Salicylideneamino-2-thiophenol [CAS: 3449-05-6]

                                                                            Chemical Name: Salicylideneamino-2-thiophenolCAS: 3449-05-6Appearance: White crystalline powderAbsorbance (Sn complex): ≥0.530 (around 415 nm)MW: 229.30, C13H11NOSStorage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionSATP is a colorimetric solvent extraction reagent for Cu, In, Ni, and Sn. It is insoluble in water, but soluble in organic solvents. SATP forms yellow or brown complexes with various metal ions. The Sn(II) complex can be extracted...

                                                                            Sodium bicinchoninate Sodium bicinchoninate, 4,4-Dicarboxy-2,2-biquinoline, disodium salt [CAS: 979-88-4]

                                                                              Chemical Name: 4,4 EDicarboxy-2,2 Ebiquinoline, disodium saltCAS: 979-88-4Appearance: Slightly yellow or yellow powderMolar absorptivity: ≥15,500 (around 332 nm)MW: 388.28, C20H10N2Na2O4Storage Condition: ambient temperature, protect from metalShipping Condition: ambient temperatureProduct DescriptionSodium bicinchoninate is a Cu(I)- specific colorimetric reagent that is more sensitive than neocuproine. Its absorption maximum is at 562 nm (molar absorptivity: 7,900). In alkaline solution,...

                                                                              TD19C6 TD19C6, 2,6,13,16,23,26-Hexaoxaheptacyclo[25.4.4.47,12.417,22.01,17.07,12.017,22]tritetracontane

                                                                                ChemicalName: 2,6,13,16,23,26-Hexaoxaheptacyclo[25.4.4.47,12.417,22.01,17.07,12.017,22]tritetracontaneAppearance: white powderMW: 602.88, C37H62O6Storage Condition: ambient temperature, protect from metalShipping Condition: ambient temperatureProduct DescriptionTD19C6 is an ammonium ion selective ionophore. It is difficult to separate ammonium ion and potassium ion because they are close in ion size. The selectivity of TD19C6 for ammonium ion is about 10 times that of potassium ion, which is...

                                                                                TFPB TFPB, Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate, sodium salt, dihydrate [CAS: 79060-88-1]

                                                                                  ChemicalName:Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate, sodium salt, dihydrate CAS: 79060-88-1Appearance: White crystalline powderPurity: ≥99.0% (Titration, as anhydrous))MW: 886.20, C32H12BF24NaStorage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionTetraphenylborate is unstable in acidic conditions because protons attack the ipso-carbon of the phenyl group and benzene is released. However, the electron density of the ipso-carbon of TFPB is low due...

                                                                                  Tiron Tiron, 1,2-Dihydroxy-3,5-benzenedisulfonic acid, disodium salt, monohydrate [CAS: 149-45-1]

                                                                                    ChemicalName: 1,2-Dihydroxy-3,5-benzenedisulfonic acid, disodium salt, monohydrate CAS: 149-45-1 (as an anhydride)Appearance: White crystal or powderPurity: ≥98.0% (Titration)Absorbance (Ti complex): ≥0.280 (around 380 nm)Sensitivity: pass testMW: 332.22, C6H4Na2O8S2, H2OStorage Condition: ambient temperature, protect from metalShipping Condition: ambient temperature Product DescriptionTiron is used as a metal indictor of Fe, and as a colorimetric reagent of Fe, Al, Ti, and other...

                                                                                    TMPyP TMPyP, 5,10,15,20-Tetrakis(N-methylpyridinium-4-yl)-21H, 23H-porphine, tetrakis(p-toluenesulfonate) [CAS: 36951-72-1]

                                                                                      ChemicalName:5,10,15,20-Tetrakis(N-methylpyridinium-4-yl)-21H, 23H-porphine, tetrakis(p-toluenesulfonate) CAS: 36951-72-1Appearance: Purple powderMolar absorptivity (Cu complex): ≥140,000 (around 423 nm)Molar absorptivity (in acidic solution): ≥280,000 (around 445 nm)MW: 1363.61, C72H66N8O12S4Storage Condition: ambient temperature, protect from metalShipping Condition: ambient temperatureProduct DescriptionTMPyP is a highly sensitive colorimetric reagent for Cu. Its proton dissociation...

                                                                                      TOPO TOPO, Tri-n-octylphosphine oxide [CAS: 78-50-2]

                                                                                        ChemicalName: Tri-n-octylphosphine oxideCAS: 78-50-2Appearance: White or slightly yellow crystalline powderPurity: ≥98.0% (GC)MW: 386.63, C24H51OPStorage Condition: ambient temperature, protect from metalsShipping Condition: ambient temperatureProduct DescriptionTOPO dissolves in cyclohexane. TOPO forms adducts with metal chelates to enhance solvent extraction efficiency (Synergistic effect). It can be used for rare earth metals, actinoids, and other metal ions indicated below. Product...

                                                                                        TPPS TPPS, 5,10,15,20-Tetraphenyl-21H, 23H-porphinetetrasulfonic acid, disulfuric acid, tetrahydrate [CAS: 35218-75-8]

                                                                                          ChemicalName: 5,10,15,20-Tetraphenyl-21H, 23H-porphinetetrasulfonic acid, disulfuric acid, tetrahydrate CAS: 35218-75-8 (as an anhydride)Appearance: Deep green or deep greenish blue powderMolar absorptivity (pH 6.5): ≥510,000 (around 413 nm)MW: 1203.21, C44H30N4O12S4, 2H2SO4, 4H2OStorage Condition: ambient temperature, protect from metal and moistureShipping Condition: ambient temperatureProduct DescriptionTPPS is a water-soluble porphyrin that is reddish-purple in aqueous solution...

                                                                                          XB-I XB-I, 3-[3-(2,4-Dimethylphenylcarbamoyl)-2-hydroxynaphthalen-1-yl-azo]-4-hydroxybenzenesulfonic acid, sodium salt [CAS: 14936-97-1]

                                                                                            ChemicalName:3-[3-(2,4-Dimethylphenylcarbamoyl)-2-hydroxynaphthalen-1-ylazo]-4-hydroxybenzenesulfonic acid, sodium salt CAS: 14936-97-1Appearance: Dark red or dark reddish brown powderAbsorbance in 55% EtOH (0.027 mmol/l): ≥0.500 (around 605 nm)Absorbance in 60% EtOH (0.055 mmol/l, Mg complex): ≥0.200 (around 505 nm)MW: 513.50, C25H20N3NaO6SStorage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionXB-I is a colorimetric reagent for Mg detection. It is...

                                                                                            XO XO, 3,3-Bis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolsulfonphthalein, disodium salt [CAS: 1611-35-4]

                                                                                              ChemicalName: 3,3'-Bis[N,N-bis(carboxymethyl)aminomethyl]-o-cresolsulfonphthalein, disodium salt CAS: 1611-35-4Appearance: Reddish orange or reddish purple powderAbsorbance (0.014 mmol/l): ≥0.210 (around 440 nm)Sensitivity: To pass testMW: 716.62, C31H30N2Na2O13SStorage Condition: ambient temperature, protect from metalShipping Condition: ambient temperatureProduct DescriptionXO is a colorimetric reagent and metal indicator of various metal ions. It is readily soluble in water. Its proton...

                                                                                              Zincon Zincon, 1-(2-Hydroxycarbonyl-phenyl)-5-(2-Hydroxy-5-sulfophenyl)-3-phenylformazan, sodium salt [CAS: 62625-22-3]

                                                                                                ChemicalName: 1-(2-Hydroxycarbonylphenyl)-5-(2-hydroxy-5-sulfophenyl)-3-phenylformazan, sodium salt [CAS: ]CAS: 62625-22-3Appearance: dark reddish-purple powderabsorbance(0.02 mmol/l, pH9): 0.375 (around 490 nm)Sensitivity: pass testMW: 462.41, C20H15N4NaO6SStorage Condition: ambient temperature, protect from metalShipping Condition: ambient temperatureProduct DescriptionZincon is a colorimetric reagent for Zn and Cu detection, and a metal indicator in EDTA titration. This reagent is insoluble...