PEG

PEG-bis-Succinimidyl Succinate, MW 2,000 is an NHS ester polyPEG which is highly reactive with amines at physiological pH to yield a stable amide bond. Reagent grade, for research purpose.

PEG-bis-Succinimidyl Succinate, MW 3,400 is amine reactive PEGylation reagent due to the two terminal NHS esters. Coupling reaction between NHS and amine produces a new stable amide linkage. Reagent grade, for research purpose.

PEG-bis-Succinimidyl Valerate, MW 3,400 is an amine reactive polymer which has 4 carbons aliphatic ester linkage between PEG and the NHS-ester. The reaction between amine and NHS forms a stable amide linkage and can be done easily in an aqueous solution at physiological pH. Reagent grade, for research purpose.

PEG-bis-Succinimidyl Valerate, MW 5,000 is a commonly used polymer in PEGylation due to its reactivity with amine. Coupling between the compound with amine molecule is often done in physiological condition or in a slightly alkaline conditionm i.e. pH 7.2 to 9. Reagent grade, for research purpose.

PEG-bis-Thiol, MW 10,000 is a linear homobifunctional PEG polymer which is selectively reactive with maleimide and disulfides. Reagent grade, for research purpose.

PEG-bis-Thiol, MW 2,000 is homobifunctional PEG polymer with two terminal thiols. This polymer can be used as a crosslinking agent with maleimide or disulfide containing molecules. Reagent grade, for research purpose.

PEG-bis-Thiol, MW 5,000 is a maleimide reactive PEG-based polymer via thioether bond formation. Thiol also forms a metal-thiol complex which is useful for surface modification. Reagent grade, for research purpose.

SPDP-PEG-Succinimidyl Valerate, MW 5,000 is a heterobifunctional PEG polymer. The compound can react with an amino molecule at pH 7 to 9. The SPDP moiety enables conjugation between PEG and thiol via formation of a new disulfide bond. Reagent grade, for research purpose.

t-Boc-N-amido-PEG-Succinimidyl Carbonate, MW 3,400 is an amine reactive PEG polymer. The coupling between amine and NHS forms an amide bond and can be done at pH 7 to 9 in an aqueous solution. Removal of t-Boc protecting group can be accomplished under acidic condition using TFA or HCl and produces a primary amine. Reagent grade, for research purpose.