PEG

N-Boc-N-bis(PEG3-acid) is a branched PEG molecule that canreact with aminoentity to form a stable amide bond. Boc group can be removed under acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

DNP-PEG3-azide is a PEG linker containing DNP and azide moieties. DNP is involved in biological applications such as participating in ion transport across membranes. The azide can react with alkynes, DBCO and BCN in copper-catalyzed Click Chemistry reactions. The hydrophilic PEG spacer increases the water solubility of the compound in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-Boc-PEG1-bromide is a PEG linker containing a bromide group and Boc-protected amino group. The hydrophilic PEG spacer increases solubility in aqueous media. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. The Boc group can be deprotected under mild acidic conditions to form the free amine. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Aminooxy-PEG2-alcohol is a short PEG linker containing an aminooxy group and a a hydroxyl group. The aminooxy group can be used in bioconjugation. It reacts with an aldehyde to form an oxime bond. If a reductant is used, it will form a hydroxylamine linkage. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries. Aminooxy compounds are very reactive and sensitive; they cannot be stored for long term. Immediate use (within 1 week) is highly recommended.

NH-bis(PEG4-t-butyl ester) is a very useful PEG reagent containing an amino group with two t-butyl esters. The amino groups is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde), t-butyl protected carboxyl group can be deprotected under acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

NH-bis(PEG4-acid) HCl salt is a branched PEG compound. It is reactive with activated NHS esters under neutral or slightlt basic condition. The terminal carboxylic acids can react with primary amino groups in the presence of activators HATU or EDC. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-Boc-N-bis(PEG3-NHS ester) is a branched molecule with a Boc protected amino group and two terminal NHS esters. . The NHS esters can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. Boc can be deprotected under acidic conditions Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

m-PEG-CH2CO2H, MW 5,000 is a hydrophilic PEG polymer. The terminal carboxylic acid can react with primary amine group in the presence of activator (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research purpose.

N-(Azido-PEG3)-N-bis(PEG3-t-butyl ester) is a branched reagent. The azide group enables PEGylation via Click Chemistry. The t-butyl protected carboxyl groups can be deprotected under acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.