PEG

Biotin-PEG-amine, MW 3,400 is a biotin PEGylation reagent. The biotin molecule has strong binding with avidin or streptavidin. The amine group is reactive with an activated NHS ester via formation of an amide linkage. Reagent grade, for research purpose.

t-Boc-N-amido-PEG-amine, MW 2,000 has a t-Boc protecing group and free amine which can be used in direct coupling with succinimidyl or PFP ester via amide bond formation. The t-Boc can be easily removed under acidic condition to produce a free primary amine. Reagent grade, for research purpose.

t-Boc-N-amido-PEG-amine, MW 3,400 is an amino PEGylation reagent with a t-Boc protecting group which can be removed under acidic conditions to form a free amine. Reagent grade, for research purpose.

t-Boc-N-amido-PEG-amine, MW 5,000 can react directly with any active ester, such as NHS and TFP, via formation of amide bond. Removal of the t-Boc can be accomplished with a strong acid to produce a free amine. Reagent grade, for research purpose.

bis-PEG4-endo-BCN is a homobifunctional click chemistry linker, PEG increase its aqueous solubility. The BCN group enable copper free click chemitry with azide-tagged molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Thiol-PEG-CH2COOH, MW 2,000 is a thiol functionalized polyPEG. The -COOH is reactive with primary amine in the presence of activator, such as EDC or HATU. The thiol moiety can react with many functional groups, such as maleimide, pyridyl disulfide, and transition metal. Reagent grade, for research purpose.

Thiol-PEG-CH2COOH, MW 3,400 is a maleimide reactive PEG polymer. The carboxylic acid can be reacted with primary amine in the presence of activator, such as EDC or HATU. The coupling between thiol and maleimide happens via formation of thioether bond. Reagent grade, for research purpose.

Fmoc-N-amido-PEG-CH2COOH, MW 3,400 is a heterobifunctional PEGylation reagent containing a carboxylic acid and Fmoc protected amine groups. The carboxylic acid reacts with a primary amine using activators, such as EDC or HATU, to form a stable amide bond. Fmoc can be deprotected under basic condition. Reagent grade, for research purpose.

Fmoc-N-amido-PEG-CH2COOH, MW 5,000 is a Fmoc protected amino PEG polymer. The carboxylic acid functional group can react with primary amines in the presecnce of activators, such as EDC or HATU, to form a stable amide bond. The Fmoc group can be deprotected under basic condition to obtain the free amine which can be used for further couplings. Reagent grade, for research purpose.