PEG

Azido-PEG9-acid is a PEG molecule consisting of an azide and a terminal carboxylic acid. 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 terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU). Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Tos-PEG9-Tos is a PEG linker containing two tosyl groups. The hydrophilic PEG spacer increases solubility in aqueous media. The tosyl group is a very good leaving group for nucleophilic substitution reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

PEG9-Tos is a PEG linker containing a hydroxyl group with a tosyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The tosyl group is a very good leaving group for nucleophilic substitution reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Tos-PEG6-Tos is a PEG linker containing two tosyl groups. The hydrophilic PEG spacer increases solubility in aqueous media. The tosyl group is a very good leaving group for nucleophilic substitution reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

THP-PEG5 is a PEG linker containing a THP protecting group and a terminal hydroxyl group. THP is an acid labile, alcohol protecting group. The terminal hydroxyl group can undergo reactions to further derivatize the compound. The hydrophilic PEG linkers increase the water solubility properties of the compound in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

PEG13 is a polymer consisting of ethylene glycol subunits with two terminal hydroxyl groups. The hydroxyl groups can undergo reactions to further derivatize the compound. The hydrophilic properties of the PEG linker increases the water solubility properties of attached compounds in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Bis-PEG1-acid is a PEG linker containing two terminal carboxylic acid groups. The hydrophilic PEG spacer increases solubility in aqueous media. The terminal carboxylic acids 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.

Bis-PEG1-NHS ester is a PEG linker containing two NHS ester groups. The hydrophilic PEG spacer increases solubility in aqueous media. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Bis-PEG1-PFP ester is a PEG linker with two PFP ester moieties. The PFP ester is amine-reactive, stable compound. PFP esters are less susceptible toward hydrolysis compared to NHS esters. The PEG linker increases the water solubility of compounds in aqueous environments. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.