Polyethylene Glycol (PEGs & PEOs)

N-(Azido-PEG4)-N-Boc-PEG4-t-butyl ester is a branched PEG derivative with a terminal azide group, Boc protected amine, and a terminal t-butyl ester. The azide group enables PEGylation via Click Chemistry. The protected amine can be deprotected by

N-(Azido-PEG4)-N-Boc-PEG4-t-butyl ester is a branched PEG derivative with a terminal azide group, Boc protected amine, and a terminal t-butyl ester. The azide group enables PEGylation via Click Chemistry. The protected amine can be deprotected by

N-(Biotin)-N-bis(PEG1-alcohol) is a branched PEG derivative with biotin and hydroxyl moieties. The branches are all connected to a central nitrogen atom. The biotin group is used for the conjugation of proteins and can also be used for labeling. The

N-(Biotin)-N-bis(PEG1-alcohol) is a branched PEG derivative with biotin and hydroxyl moieties. The branches are all connected to a central nitrogen atom. The biotin group is used for the conjugation of proteins and can also be used for labeling. The

N-(Biotin)-N-bis(PEG1-alcohol) is a branched PEG derivative with biotin and hydroxyl moieties. The branches are all connected to a central nitrogen atom. The biotin group is used for the conjugation of proteins and can also be used for labeling. The

N-(Biotin-PEG4)-N-bis(PEG4-acid) HCl salt is a PEG derivative which contains biotin and carboxylic acid moieties. Biotin can be used for the conjugation of proteins and can also be used for labeling. The carboxylic acid groups can react with primary

N-(Biotin-PEG4)-N-bis(PEG4-acid) HCl salt is a PEG derivative which contains biotin and carboxylic acid moieties. Biotin can be used for the conjugation of proteins and can also be used for labeling. The carboxylic acid groups can react with primary

N-(Biotin-PEG4)-N-bis(PEG4-acid) HCl salt is a PEG derivative which contains biotin and carboxylic acid moieties. Biotin can be used for the conjugation of proteins and can also be used for labeling. The carboxylic acid groups can react with primary

N-(Boc-PEG3)-N-bis(PEG2-alcohol) is a branched PEG linker with a Boc protecting group and two PEG2-alcohol branches connected to a central nitrogen. The Boc can be removed under acidic conditions. The hydroxyl groups can be reacted the further

N-(Boc-PEG3)-N-bis(PEG2-alcohol) is a branched PEG linker with a Boc protecting group and two PEG2-alcohol branches connected to a central nitrogen. The Boc can be removed under acidic conditions. The hydroxyl groups can be reacted the further

N-(Boc-PEG3)-N-bis(PEG2-alcohol) is a branched PEG linker with a Boc protecting group and two PEG2-alcohol branches connected to a central nitrogen. The Boc can be removed under acidic conditions. The hydroxyl groups can be reacted the further

N-(Boc-PEG3)-N-bis(PEG3-acid) is a branched PEG derivative with a Boc protected amino group and two terminal carboxylic acids. The protected amine can be deprotected by acidic conditions. The terminal carboxylic acids can be reacted with primary