PEG

E3 ligase Ligand 19 is small molecule used in the development of PROTACs.

Bromoacetamido-PEG2-AZD is a PEG linker containing an AZD group and a bromide group which 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.

Mal-Cyclohexyl-PEG3-Biotin is a PEG linker containing a maleimide moiety and a biotin group. Maleimides react specifically with sulfhydryl groups to form a stable thioether linkage when the pH is between 6.5 and 7.5. The biotinylation can react with amine molecules in the presence of activator EDC or HATU. PEG attached to the biotin gives an extended spacer arm that permits the biotin to reach into the binding pocket of the protein. The PEG moiety also increases solubility of Biotin-PEG conjugates considerably. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

SPDP-Gly-Pro-NHS ester is a linker with SPDP and NHS ester moieties. The SPDP is an amine and thiol reactive crosslinker. It is also membrane permeable, allowing it to participate in intracellular crosslinking reactions. The NHS ester is amine reactive and forms stable amide bonds. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Amino-Tri-(Propargyl-PEG2-ethoxymethyl)-methane TFA Salt is a crosslinker consisting of an amino group with three propargyl groups. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The propargyl groups can form triazole linkage with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

PEG3-bis(Amino-Tri-(Propargyl-PEG2-ethoxymethyl)-methane) is a crosslinker consisting of six propargyl groups. The propargyl groups can form triazole linkage with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

t-Boc-N-Amido-PEG11-Tos is a PEG linker containing a tosyl group and Boc-protected amine group. The hydrophilic PEG spacer increases the water solubility of a compound in aqueous media. The tosyl group is a very good leaving group for nucleophilic substitution reactions. The Boc group can be deprotected under mild acidic conditions to form a free amine. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-(Azido-PEG10)-N-PEG10-acid is an aqueous soluble PEG reagent with a terminal azide group and terminal carboxylic acid. the secondary amine NH group is reactive with NHS ester, 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 azide group can participate in Click Chemistry. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

DBCO-PEG6-acid is an analog of DBCO-Acid with PEG linker and a DBCO group. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility. 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.