Thiol-PEG-CH2COOH, MW 1,000 is a heterobifunctional PEG polymer with terminal -COOH which can react with primary amine in the presence of activator, such as EDC or HATU. The thiol group can react with maleimide, disulfides, and transition metal via metal-thiolate complex. Reagent grade, for research purpose.
Usually ships within 24 hours.