Bis-sulfone-PEG-NHS Ester

An activated ester derivative that facilitates efficient, amine-selective conjugation following site-specific cysteine coupling. Used in the synthesis of ADCs and protein-labeling reagents for high-yield, stable amide bond formation.

Similar Products: Bis-sulfone (non PEG), Bis-sulfone-PEGn-Acid, Bis-sulfone-PEGn-Azide, Mono-Sulfone (non PEG).