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2-PDS 2-PDS, 2,2 EDithiodipyridine [CAS: 2127-03-9]

    Chemical Name: 2,2'-Dithiodipyridine CAS: 2127-03-9Appearance: white or pale yellow powderMolar absorptivity: ≥14,000 at 235 nmMW: 220.32, C10H8N2S2Storage Condition : ambient temperatureShipping Condition : ambient temperature Fig 1. 2-PDS reaction with thiol compound ...

    4-PDS 4-PDS, 4,4 EDithiodipyridine [CAS: 2645-22-9]

      Chemical Name: 4,4'-Dithiodipyridine CAS: 2645-22-9Appearance: white or pale yellow powderMolar absorptivity: ≥14,000 at 235 nmMW: 220.32, C10H8N2S2 Storage Condition : ambient temperatureShipping Condition: ambient temperature Product Description2-PDS and 4-PDS are used for the photometric determination of thiol groups in biological samples. These compounds react with the thiol groups at pH 5 to form mercaptopyridine (Fig. 1 and 2). The maximum wavelengths of 2-Mercaptopyridine and...

      DTNB DTNB, 5,5 EDithiobis(2-nitrobenzoic acid) [CAS: 69-78-3]

        Chemical Name: 5,5'-Dithiobis(2-nitrobenzoic acid)CAS: 69-78-3Appearance: pale yellow crystalline powderMolar absorptivity: ≥12,000 at 305 nmMW: 396.35, C14H8N2O8S2 Storage Condition : ambient temperatureShipping Condition: ambient temperature Product DescriptionDTNB is known as Ellman’s reagent. It is used for the colorimetric determination of thiol groups in biological samples. It is fairly soluble in water. Colorless DTNB is converted to yellow 5-Mercapto-2- nitrobenzoic acid in the...