PEG

Amino-PEG4-acid is a very popular PEG linker. The amino group (NH2) is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The terminal carboxylic acid can react with primary amine groups of activated NHS ester to form a stable amide bond, long PEG spacer increases reagent's solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Amino-PEG6-acid is a PEG reagent composing one amine (NH2) and one terminal carboxylic acid group (CO2). The hydrophilic PEG spacer increases solubility in aqueous media. The amino group is reactive with activated NHS esters to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Bis-PEG5-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-PEG7-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.

Azido-PEG4-t-butyl ester is a click chemistry linker containing an azide (N3) and a t-butyl ester moiety. The hydrophilic PEG spacer increases solubility in aqueous media. The azide group is reactive toward alkyne, BCN, DBCO via Click Chemistry . The t-butyl protected carboxyl group can be deprotected under acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Acid-PEG5-t-butyl ester is a PEG linker containing a t-butyl protected carboxyl group with a terminal carboxylic acid. 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 hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Hydroxy-PEG5-t-butyl ester is a PEG linker containing a hydroxyl group with a t-butyl ester. The hydrophilic PEG spacer increases solubility in aqueous media. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The t-butyl protected carboxyl group can be deprotected under acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Bis-PEG9-PFP ester is a PEG linker with two activated PFP ester moieties. PFP esters can react with amine groups to form amide bonds. They are also less susceptible to undergo hydrolysis compared to other amine reactive groups. The hydrophilic PEG linker increase the water solubility of the compond in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Bis-PEG13-PFP ester is a PEG linker with two activated PFP ester moieties. PFP esters can react with amine groups to form amide bonds. They are also less susceptible to undergo hydrolysis compared to other amine reactive groups. The hydrophilic PEG linker increase the water solubility of the compond in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.