Polyethylene Glycol (PEGs & PEOs)

t-Boc-N-Amido-PEG7-Tos is a PEG derivative containing a tosyl group and Boc-protected amine group. The hydrophilic PEG spacer increases the water solubility of a compound in aqueous media. The tosyl group is a very good leaving group for

t-boc-N-amido-PEG8-azide is a PEG derivative containing an azide group and Boc-protected amino group. The hydrophilic PEG spacer increases solubility in aqueous media. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a

t-boc-N-amido-PEG8-azide is a PEG derivative containing an azide group and Boc-protected amino group. The hydrophilic PEG spacer increases solubility in aqueous media. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a

t-boc-N-amido-PEG8-azide is a PEG derivative containing an azide group and Boc-protected amino group. The hydrophilic PEG spacer increases solubility in aqueous media. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a

t-Butoxycarbonyl-PEG1-NHS ester contains a t-boc protecting group and an NHS ester moiety. The t-boc group is removed under acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media. The NHS ester reacts specifically and

t-Butoxycarbonyl-PEG1-NHS ester contains a t-boc protecting group and an NHS ester moiety. The t-boc group is removed under acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media. The NHS ester reacts specifically and

t-Butoxycarbonyl-PEG1-NHS ester contains a t-boc protecting group and an NHS ester moiety. The t-boc group is removed under acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media. The NHS ester reacts specifically and

t-Butoxycarbonyl-PEG2-NHS ester has a t-Boc protecting group and an NHS ester moiety. The t-butyl group can be deprotected under acidic conditions. NHS ester can react specifically and efficiently with primary amines such as the side chain of lysine

t-Butoxycarbonyl-PEG2-NHS ester has a t-Boc protecting group and an NHS ester moiety. The t-butyl group can be deprotected under acidic conditions. NHS ester can react specifically and efficiently with primary amines such as the side chain of lysine

t-Butoxycarbonyl-PEG2-NHS ester has a t-Boc protecting group and an NHS ester moiety. The t-butyl group can be deprotected under acidic conditions. NHS ester can react specifically and efficiently with primary amines such as the side chain of lysine

t-Butoxycarbonyl-PEG2-sulfonic acid is a PEG derivative containing a t-Boc protecting group and sulfonic acid moiety. The t-Boc protecting group can be removed under acidic conditions. The sulfonic acid can undergo esterification, halogenation and

t-Butoxycarbonyl-PEG2-sulfonic acid is a PEG derivative containing a t-Boc protecting group and sulfonic acid moiety. The t-Boc protecting group can be removed under acidic conditions. The sulfonic acid can undergo esterification, halogenation and