PEG

PEG22 is a polymeric structure consisting of ethylene glycol units and two terminal hydroxyl groups. The hydroxyl group can react to further derivatize the compound. The hydrophilic PEG linkers increase the water solubility of the compound in aqueous media. The water solubility properties of the PEG linker are enhanced with longer PEG chains. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

PC-Biotin-PEG4-PEG3-azide is useful for introducing a biotin moiety to alkyne-containing biomolecules using Click Chemistry. The extended hydrophilic spacer arm provides high solubility to the labeled molecules in aqueous media. Captured biomolecules can be efficiently photoreleased using near-UV, low intensity lamp (e.g. 365 nm lamp at 1-5 mW/cm2). Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

PEG21-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.

Boc-NH-ethyl-SS-propionic acid is a cleavable crboxylic acid linker. The terminal carboxylic acid group can be reacted with a primary amine in the presence of activators such as EDC and HATU to form stable amide bonds. The boc protecting group can be removed under acidic conditions to release the free amine for further reaction. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Propargyl-PEG4-(CH2)3-CO2H is a linker containing a propargyl group at one end and a carboxylic acid at the other end. The carboxylic acid reacts with amine groups in the presence of activators (EDC or HATU). Under the catalyzation of copper, the propargyl group forms linkage with azide group of biomolecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

m-PEG4-phosphonic acid ethyl ester is a PEG linker linker with an attached phosphonic acid group. 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.

m-PEG4-phosphonic acid is a PEG linker linker with an attached phosphonic acid group. 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-PEG9-bromide consists of a propargyl group and a bromide group. The propargyl group reacts with azide compounds in copper catalyzed Click Chemistry reactions. The bromide (Br)can be used as a leaving group for nucleophilic substitution reactions. The 9-unit PEG spacer improves the hydrophilicity of the molecule. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

1,1,1-Trifluoroethyl-PEG5-Tos has a trifluoroethyl and tosyl attached to it. The tosyl group is a very good leaving group for nucleophilic substitution reactions. 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.