Polyethylene Glycol (PEGs & PEOs)

N-(propanoic acid)-N-bis(m-PEG12) is a PEG derivative containing a terminal carboxylic acid and 2 PEG chains with methoxy groups. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC)

N-(t-butyl ester-PEG3)-N-bis(PEG3-amine) is a branched PEG linker that contains a t-butyl ester and two amine moieties. The t-butyl ester can be deprotected under acidic conditions. The amine group can be further reacted with carboxylic acids, NHS

N-(t-butyl ester-PEG3)-N-bis(PEG3-amine) is a branched PEG linker that contains a t-butyl ester and two amine moieties. The t-butyl ester can be deprotected under acidic conditions. The amine group can be further reacted with carboxylic acids, NHS

N-(t-butyl-PEG2)-N-bis(PEG3-alcohol).

N-(t-butyl-PEG2)-N-bis(PEG3-alcohol).

N-(t-butyl-PEG2)-N-bis(PEG3-alcohol).

N-(Tos-PEG4)-N-bis(PEG4-t-butyl ester) is a branched PEG linker with a Tos-PEG4 branch and two PEG4-t-butyl ester groups attached to a central nitrogen. The tosyl group is a very good leaving group for nucleophilic substitution reactions. The

N-(Tos-PEG4)-N-bis(PEG4-t-butyl ester) is a branched PEG linker with a Tos-PEG4 branch and two PEG4-t-butyl ester groups attached to a central nitrogen. The tosyl group is a very good leaving group for nucleophilic substitution reactions. The

N-(Tos-PEG4)-N-bis(PEG4-t-butyl ester) is a branched PEG linker with a Tos-PEG4 branch and two PEG4-t-butyl ester groups attached to a central nitrogen. The tosyl group is a very good leaving group for nucleophilic substitution reactions. The

N-(triethoxysilane-PEG36-PEG3-)-N-bis(PEG3-biotin).

N-(triethoxysilane-PEG36-PEG3-)-N-bis(PEG3-biotin).

N-(triethoxysilane-PEG36-PEG3-)-N-bis(PEG3-biotin).