PEG

m-PEG-Biotin, MW 1,000 is a biotinylation reagent with strong binding affinity to streptavadin or avadin for molecular labeling/detection. Reagent grade, for research use only.

m-PEG-CH2CO2H, MW 1,000 is a hydrophilic PEG polymer. The terminal carboxylic acid can react with a primary amine group in the presence of an activator (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research use only.

Azide-PEG-alcohol, MW 7,500 is a PEG polymer with an azide and hydroxyl group. The azide can react with alkyne for both Copper-Catalyzed Azide-Alkyne Cycloaddtion (CuAAC) and Strain-Promoted Azide-Alkyne Cycloaddtion (SPAAC) . The OH group can easily undergo further derivatization. Reagent grade, for research use only.

4arm-PEG-Maleimide, MW 2,000 is a thiol reactive multiarm PEG polymer. The maleimide group will react with a thiol group to form a covalent bond. The hydrophilic PEG chain increases the water solubility of the compound in aqueous media. Reagent grade, for research use only.

4arm-PEG-Maleimide, MW 5,000 is a thiol reactive multiarm PEG polymer. Maleimides react with thiols or sulfhydryl-containing molecules at pH 6.5 to 7.5 via formation of stable thioether bond. The hydrophilic PEG chain increases the water solubility of the compound in aqueous media. Reagent grade, for research use only.

m-PEG-Mal, MW 1,000 is a PEG-based crosslinking agent that contains a thiol reactive functional group. The maleimide group can react with thiols between pH 6.5 to 7.5 to form a stable thioether bond. Reagent grade, for research use only.

PEG-bis-SPDP, MW 1,000 is a water soluble PEG polymer with two SPDP moieties. It is reactive with thiol to form disulfide molecules. Reagent grade, for research use only.

PEG-bis-SPDP, MW 5,000 is a water soluble PEG polymer with two SPDP moieties. It reacts with thiol groups to create disulfide molecules. Reagent grade, for research use only.

PEG-bis-SPDP, MW 20,000 is a water soluble PEG polymer with two SPDP moieties. It reacts with thiol moeities to make disulfide molecules. Reagent grade, for research use only.