PEG

Ms-PEG3-Ms are PEG linkers with two mesyl groups. The mesyl groups are good leaving groups and can also be used as protecting groups for primary alcohols. They can be deprotected in the presence of sodium amalgam. The hydrophilic PEG linker increases the water solubility of the compound in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Propargyl-PEG2-methylamine is a crosslinker with a propargyl group and methylamine group. The propargyl group forms triazole linkage with azide-bearing compounds or biomolecules in copper catalyzed Click Chemistry reactions. The methylamine group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-Me-N-bis(PEG2-propargyl) has two alkyne groups which can participate in Click Chemistry reactions with azide-bearing compounds or biomolecules; copper is required for catalyzation. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Azido-PEG1-methylamine contain an azide group and methylamine group. The hydrophilic PEG spacer increases solubility in aqueous media. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. The methylamine group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Acid-PEG4-t-butyl ester is a PEG linker containing a t-butyl protected carboxyl group with 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 hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Azido-PEG1-methyl ester is a crosslinker containing an azide group and a methyl ester. The azide group enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

t-Butoxycarbonyl-PEG4-NHS ester has a t-Boc protecting group and an NHS ester moiety. The t-butyl group can be deprotected under acidic conditions. NHS ester can react specifically and efficiently with primary amines such as the side chain of lysine residues or aminosilane-coated surfaces at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG linker increases the water solubility of the compound in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Tos-PEG4-acid is a PEG linker containing a tosyl group and a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. The tosyl group 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.

1,1,1-Trifluoroethyl-PEG3-Propargyl is a heterobifunctional reagent with an alkyne group and a trifluoroethyl group. The alkyne group reacts with azide compounds or biomolecules in copper catalyzed Click Chemistry to form a stable triazole linkage. The trifluoroethyl group is used to react with lysine and other primary amine groups in proteins, antibody and other molecules and surfaces. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.