Polyethylene Glycol (PEGs & PEOs)

NH-bis(PEG3-t-butyl ester) is a PEG derivative containing an amino group with two t-butyl esters. The amino groups is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The t-butyl protected carboxyl group can be

NH-bis(PEG3-t-butyl ester) is a PEG derivative containing an amino group with two t-butyl esters. The amino groups is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The t-butyl protected carboxyl group can be

NH-bis(PEG3-t-butyl ester) is a PEG derivative containing an amino group with two t-butyl esters. The amino groups is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The t-butyl protected carboxyl group can be

NH-bis(PEG4-acid) HCl salt is a branched PEG derivative with a central amino group and two terminal carboxylic acids. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls, etc. The terminal carboxylic acids can be

NH-bis(PEG4-acid) HCl salt is a branched PEG derivative with a central amino group and two terminal carboxylic acids. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls, etc. The terminal carboxylic acids can be

NH-bis(PEG4-acid) HCl salt is a branched PEG derivative with a central amino group and two terminal carboxylic acids. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls, etc. The terminal carboxylic acids can be

NH-bis(PEG4-Boc) is a PEG derivative containing an amino group with two Boc protected amines. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls. The protected amines can be deprotected by acidic conditions.

NH-bis(PEG4-Boc) is a PEG derivative containing an amino group with two Boc protected amines. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls. The protected amines can be deprotected by acidic conditions.

NH-bis(PEG4-Boc) is a PEG derivative containing an amino group with two Boc protected amines. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls. The protected amines can be deprotected by acidic conditions.

NH-bis(PEG4-OH) is a branched PEG derivative with a central amino group and two terminal hydroxyl groups. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls, etc. The hydroxy groups enable further derivatization or

NH-bis(PEG4-OH) is a branched PEG derivative with a central amino group and two terminal hydroxyl groups. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls, etc. The hydroxy groups enable further derivatization or

NH-bis(PEG4-OH) is a branched PEG derivative with a central amino group and two terminal hydroxyl groups. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls, etc. The hydroxy groups enable further derivatization or