Polyethylene Glycol (PEGs & PEOs)

t-Butoxycarbonyl-PEG4-sulfonic acid is a PEG derivative containing a t-butyl protecting group and sulfonic acid moiety. t-bytl can be removed under acidic conditions. Sulfonic acid groups can participate in esterification, halogenation and

t-Butoxycarbonyl-PEG5-sulfonic acid is a PEG derivative containing a t-butyl protecting group and a sulfonic acid moiety. t-butyl can be deprotected under acidic conditions. Sulfonic acid groups can participate in esterification, halogenation and

t-Butoxycarbonyl-PEG5-sulfonic acid is a PEG derivative containing a t-butyl protecting group and a sulfonic acid moiety. t-butyl can be deprotected under acidic conditions. Sulfonic acid groups can participate in esterification, halogenation and

t-Butoxycarbonyl-PEG5-sulfonic acid is a PEG derivative containing a t-butyl protecting group and a sulfonic acid moiety. t-butyl can be deprotected under acidic conditions. Sulfonic acid groups can participate in esterification, halogenation and

t-Butoxycarbonyl-PEG5-sulfonic acid is a PEG derivative containing a t-butyl protecting group and a sulfonic acid moiety. t-butyl can be deprotected under acidic conditions. Sulfonic acid groups can participate in esterification, halogenation and

Azido-PEG24-NHS ester is a PEG derivative containing an azide group and an NHS ester. The hydrophilic PEG spacer increases solubility in aqueous media. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole

t-Butyl 3-(hydroxypropoxyl)-propanoate contains reactive hydroxyl and t-butyl protected carboxyl moieties. The hydroxyl group can be reacted to further derivatize the compound. The t-butyl carbonyl group can be deprotected under acidic conditions.

t-Butyl 3-(hydroxypropoxyl)-propanoate contains reactive hydroxyl and t-butyl protected carboxyl moieties. The hydroxyl group can be reacted to further derivatize the compound. The t-butyl carbonyl group can be deprotected under acidic conditions.

t-Butyl 3-(hydroxypropoxyl)-propanoate contains reactive hydroxyl and t-butyl protected carboxyl moieties. The hydroxyl group can be reacted to further derivatize the compound. The t-butyl carbonyl group can be deprotected under acidic conditions.

t-butyl ester-PEG5-CH2COOH is a PEG derivative containing a t-butyl protected carboxyl group with a terminal carboxylic acid. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to

t-butyl ester-PEG5-CH2COOH is a PEG derivative containing a t-butyl protected carboxyl group with a terminal carboxylic acid. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to

t-butyl ester-PEG5-CH2COOH is a PEG derivative containing a t-butyl protected carboxyl group with a terminal carboxylic acid. The terminal carboxylic acid can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to