09 Cross-Linking Reagents




  • Product code
    S330  Sulfo-SMCC
  • CAS No.
  • Chemical name
    N-[(4-Maleimidomethyl)cyclohexylcarbonyloxy]sulfosuccinimide, sodium salt
  • MW
Unit size Price Item Code
50 mg $377.00 S330-10

50 mg
Quantity may be adjusted within the cart.

Product Description

Sulfo-SMCC is a bifunctional reagent contaning a maleimide group and an N- hydroxysuccinimide active ester on different ends of the molecule. Maleimide group react with SH group, but N- hydroxysuccinimide active ester reacts specifically with amino groups. At pH above neutral, active ester group to form a stable amide bond with an amino group. On the other hand, maleimide groups can be reacted selectively with respect to the thiol group under the conditions of pH6-7. Further, Sulfo-SMCC having a cyclohexane structure linker site is characterized as compared with the same type of crosslinking agent having an aromatic ring in the linker portion, the stability of the maleimide groups that increase. Since the active ester group having a sulfonic acid group is introduced, it is possible to carry out the labeling reaction without using an organic solvent such as DMSO or DMF.

Technical info

Product Name Code Length (Å)
Sulfo-EMCS S024 9.4
Sulfo-GMBS S025 6.9
Sulfo-HMCS S026 13.0
Sulfo-KMUS S250 16.7
Sulfo-SMCC S330 8.0


Open References

1)  S. Hashida, M. Imagawa, S. Inoue, K.-H. Ruan and E. Ishikawa, "More Useful Maleimide Compounds for the Conjugation of Fab' to Horseradish Peroxidase Through Thiol Groups in the Hinge", J. Appl. Biochem., 19846, 56.
2) O. Prat, E. Lopez and G. Mathis, "Europium(III) Cryptate: A Fluorescent Label for the Detection of DNA Hybrids on Solid Support", Anal. Biochem., 1991195(2), 283.
3) O. Siiman, A. Burshteyn, J. A. Maples and J. K. Whitesell, "Tris(3-mercaptopropyl)-N-glycylaminomethane as a New Linker to Bridge Antibody with Metal Particles for Biological Cell Separations", Bioconjugate Chem., 200011(4), 549.
4) T. P. Thomas, A. K. Patri, A. Myc, M. T. Myaing, J. Y. Ye, T. B. Norris and J. R. Baker Jr., "In Vitro Targeting of Synthesized Antibody-conjugated Dendrimer Nanoparticles", Biomacromolecules20045(6), 2269.
5) V. Gauvreau, G. Laroche, "Micropattern Printing of Adhesion, Spreading, and Migration Peptides on Poly(tetrafluoroethylene) Films to Promote Endothelialization", Bioconjugate Chem., 200516(5), 1088.

Handling and storage condition

Appearance: White to almost white powder
Purity (HPLC): ≥90.0% (HPLC)
Solubility in water: To pass test (clear, colorless)
Handling and storage condition
-20°C, Protect from moisture

Product Classification

Product Classification

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