PEG

Fmoc-N-amido-PEG1-acid is a PEG linker containing an Fmoc-protected amine and a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. The Fmoc group can be deprotected under basic condition to obtain the free amine which can be used for further conjugations. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Azido-PEG16-t-butyl ester is a long chain, aqueous soluble PEG l reagent with an azide group and a t-butyl ester moiety. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The azide (N3) group can react with alkyne, BCN, DBCO via Click Chemistry. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

4-(2,5-dioxo-2H-pyrrol-1(5H)-yl)butanoic acid contains a maleimide group and a terminal carboxylic acid. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Tos-PEG3-t-butyl ester is a PEG linker containing a t-butyl ester and a tosyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The tosyl group is a very good leaving group for nucleophilic substitution reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-Boc-PEG5-alcohol is a PEG linker containing a hydroxyl group and Boc-protected amino group. The hydrophilic PEG spacer increases solubility in aqueous media. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The Boc group can be deprotected under mild acidic conditions to form the free amine. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Propargyl-PEG6-alcohol is alkyne linker that can react with azide compounds via copper catalyzed azide-alkyne Click Chemistry. The hydrophilic PEG8 spacer increases solubility in aqueous environment. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Azido-PEG5-alcohol is a water soluble PEG linker containing an azide (N3) and a terminal hydroxyl group. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Nonaethylene glycol is a polymer consisting of ethylene glycol repeating units and terminal hydroxyl groups. The ethylene glycol units have high water solubility properties. The hydroxyl groups can react in order to further derivatize the compound. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Bromoacetamido-PEG8-acid is a PEG linker containing a bromide group and a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.