PEG

Propargyl-PEG4-NHS ester is an amine reactive PEG linker with an alkyne group. Under the copper catalyzation, alkyne group can react with azide-bearing biomolecules to form a stable triazole linkage. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Propargyl-PEG3-NHS ester is a Click Chemistry reagent with a propargyl group and an NHS ester group. The propargyl group can react with biomolecules containing azide group via copper catalyzed Click Chemistry reaction. The NHS ester is an amine reactive group which can be used for derivatizing peptides, antibodies, amine coated surfaces etc. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

t-Boc-N-amido-PEG11-amine is a water soluble PEG linker containing an amino group and Boc-protected amino group. The hydrophilic PEG spacer increases solubility in aqueous media. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The Boc group can be deprotected under mild acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Amino-PEG4-azide is a very popular bifunctional crosslinker. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Amino-PEG4-t-Boc-hydrazide is a PEG linker containing an amino group and a Boc-protected hydrazide. The hydrophilic PEG spacer increases solubility in aqueous media. The amine group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The Boc can be deprotected under mild acidic conditions to form a reactive hydrazide, which can then be coupled with various carbonyl groups. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Amino-PEG8-t-Boc-hydrazide is a crosslinker containing an amino group and a Boc-protected hydrazide. The hydrophilic PEG spacer increases solubility in aqueous media. The amine group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The Boc can be deprotected under mild acidic conditions to form a reactive hydrazide, which can then be coupled with various carbonyl groups. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Fmoc-N-amido-PEG4-t-Boc-Hydrazide is a PEG reagent containing an Fmoc-protected amine and a Boc-protected hydrazide. The Fmoc group can be deprotected under basic condition to obtain the free amine which can be used for further conjugations. The hydrophilic PEG spacer increases solubility in aqueous media. The Boc can be deprotected under mild acidic conditions to form a reactive hydrazide, which can then be coupled with various carbonyl groups. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Biotin-PEG12-NHS ester is a bifunctional PEG linker featuring a biotin group and an activated NHS ester. The NHS ester is easily displaced by amines to rapidly form amides under mild conditions, while the biotin group is useful for affinity-based applications such as pull-down assays or for ligating with streptavidin proteins.

Biotin-PEG12-acid is a biotin PEG linker containing a carboxylic acid group, it is reactive with amine moiety. The hydrophilic PEG spacer arm imparts water solubility that is transferred to the biotinylated molecule. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.