Bis-sulfone-PEG4-NHS ester

MedChem Express

Bis-sulfone-PEG4-NHS ester

5

Research Use Only

C40H48N2O14S2

844.94

Bis-sulfone-PEG4-NHS Ester is a bis-alkylating labeling reagent that is selective for the cysteine sulfur atoms from a native disulfide. These reagents undergo bis-alkylation to conjugate both thiols derived from the two cysteine residues of a reduced native disulfide bond such as the interchain disulfide bonds of an antibody. The reaction results in covalent rebridging of the disulfide bond via a three carbon bridge leaving the protein structurally intact. The hydrophilic PEG spacer increases solubility in aqueous media.

O=C(CCOCCOCCOCCOCCNC(C1=CC=C(C(C(CS(=O)(C2=CC=C(C)C=C2)=O)CS(=O)(C3=CC=C(C)C=C3)=O)=O)C=C1)=O)ON4C(CCC4=O)=O

12352200