Polyethylene Glycol (PEGs & PEOs)

N-Fmoc-Azido-tris(ethylenoxy)-L-alanine has an Fmoc protected L-alanine residue and a terminal azide moiety. The Fmoc protecting group can be removed under basic conditions to be further reacted. The azide can react with alkynes under

N-Mal-N-bis(PEG2-acid) is a branched PEG derivative with two terminal carboxylic acids and a maleimide group. The terminal carboxylic acids can be reacted with primary amino groups in the presence of activators (e.g. EDC, or DCC) to form a stable

N-Mal-N-bis(PEG2-acid) is a branched PEG derivative with two terminal carboxylic acids and a maleimide group. The terminal carboxylic acids can be reacted with primary amino groups in the presence of activators (e.g. EDC, or DCC) to form a stable

N-Mal-N-bis(PEG2-acid) is a branched PEG derivative with two terminal carboxylic acids and a maleimide group. The terminal carboxylic acids can be reacted with primary amino groups in the presence of activators (e.g. EDC, or DCC) to form a stable

N-Mal-N-bis(PEG2-amine) TFA salt is a branched PEG derivative with a terminal maleimide group and two terminal amino groups. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a

N-Mal-N-bis(PEG2-amine) TFA salt is a branched PEG derivative with a terminal maleimide group and two terminal amino groups. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a

N-Mal-N-bis(PEG2-amine) TFA salt is a branched PEG derivative with a terminal maleimide group and two terminal amino groups. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a

N-Mal-N-bis(PEG2-NH-Boc) is a branched PEG derivative with a terminal maleimide group and two terminal Boc protected amino groups. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with

N-Mal-N-bis(PEG2-NH-Boc) is a branched PEG derivative with a terminal maleimide group and two terminal Boc protected amino groups. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with

N-Mal-N-bis(PEG2-NH-Boc) is a branched PEG derivative with a terminal maleimide group and two terminal Boc protected amino groups. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with

N-Mal-N-bis(PEG2-NHS ester) is a branched PEG derivative with a terminal maleimide group and two terminal NHS esters. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol. The

N-Mal-N-bis(PEG2-NHS ester) is a branched PEG derivative with a terminal maleimide group and two terminal NHS esters. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol. The