carboxymethyl peg carboxymethyl (mw 5000)

Carboxymethyl-PEG-Carboxymethyl (MW 5000) is a polyethylene glycol (PEG)-based linker designed specifically for the synthesis of PROTACs [1].

HO-PEG-SCM (MW 5000) is a hydroxyl PEG succinimidyl carboxymethyl ester with heterobifunctional properties commonly employed as a crosslinking agent or spacer between two distinct chemical entities.

Mal-PEG-SCM (MW 5000) is a linear heterobifunctional PEG compound featuring maleimide and N-hydroxysuccinimide (NHS) ester groups. As a significant PEG-based crosslinker, it facilitates reactions with thiol, SH, mercapto, or sulfhydryl groups via the maleimide moiety. SCM stands for succinimidyl carboxymethyl ester, which can react with primary amines. The maleimide contains a reactive C=C double bond and is sensitive to light and oxygen.

N3-PEG-SCM (MW 5000) [Azide PEG Succinimidyl Carboxymethyl Ester (MW 5000)] is a linear, heterobifunctional polyethylene glycol (PEG) compound featuring both succinimidyl carbonate and azide groups.