PEG

DBCO-NHCO-PEG4-acid is an analog of DBCO-Acid with a hydrophilic PEG spacer arm, which improves water solubility. This reagent is a non-activated building block with enhanced solubility in aqueous media and can thus be used to derivatize amine-containing molecule through a stable amide bond. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

m-PEG-Lys-NHS ester, MW 20,000 is a PEG polymer NHS ester which can react with primary amine for labeling proteins and antibodies. Reagent grade, for research purpose.

m-PEG-Lys-NHS ester, MW 40,000 is an NHS ester polyPEG. It is reactive with amino group of protein or other molecule for labeling application. Reagent grade, for research purpose.

m-PEG8-bromide is a PEG linker containing a bromide group. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

endo-BCN-PEG12-NHS ester is a aqueous soluble PEG linker containing an NHS ester group and a BCN group. It can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The BCN group enable copper free click chemistry with azide-attached molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

endo-BCN-PEG12-acid is amonodisperse PEG reagent containing a BCN 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 BCN group enable click chemistry with azide -tagged molecules. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

endo-BCN-PEG8-acid is a BCN-containing crosslinker reagent. The terminal carboxylic acid is reactive with primary amine groups in the presence of activators (e.g. EDC, or HATU). The BCN group enable copper free click chemistry with azide -tagged biomolecules. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-DBCO-N-bis(PEG2-NHS ester) is a click chemistry reagent with NHS ester groups. The NHS esters can be used to label the primary amines (-NH2) of proteins and other amine-containing molecules.The DBCO group allows to react with azide molecule via copper-free Click Chemistry. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Fmoc-NH-ethyl-SS-propionic acid is a cleavable linker with acid to be reacted with amine-bearing molecules, The Fmoc protecting group can be removed under basic condition to obtain a free amine which can be used for further conjugations. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.