Linear Carbonate PEGs from JenKem Technology are activated PEGs for amine PEGylation with stable carbonate linker. Linear Carbonate PEGs are reactive towards the amino group of lysine(s) or N-terminal amine, with longer hydrolysis half-life compared with M-PEG-SCM. Carbonate PEGylation products with molecular weights, branching, and functional groups not listed in our online catalog may be available by custom synthesis. Please inquire at email@example.com about pricing and availability of custom PEGylation products. Bulk PEGs and GMP PEGs are also available upon request. Please contact us for special bulk pricing.