PEG

t-Boc-N-amido-PEG-Succinimidyl Valerate, MW 3,400 is an active ester PEGylation polymer with a t-Boc protecting group. The succinimidyl ester reacts with amino molecule in an aqueous solution to form a stable amide linkage. Deprotection of t-Boc can be done using TFA and yields a free amine. Reagent grade, for research purpose.

Thiol-PEG-CH2COOH, MW 1,000 is a heterobifunctional PEG polymer with terminal -COOH which can react with primary amine in the presence of activator, such as EDC or HATU. The thiol group can react with maleimide, disulfides, and transition metal via metal-thiolate complex. Reagent grade, for research purpose.

Maleimide-PEG-amine, MW 20,000 is a linear heterobifunctional PEGylation polymer. The NH2 group is reactive with carboxylic acids (in the presence of HATU or EDC) or activated NHS esters via formation of amide linkage. The maleimide group can react with a thiol group to form a covalent thioether bond. Reagent grade, for research purpose.

AZD-PEG2-Azide Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Methyltetrazine-amido-N-bis(PEG4-NHS ester) is a click chemistry PEG reagent which contains two NHS ester groups and a methyltetrazine group. This reagent can react with TCO-containing compounds to form a stable covalent bond without the catalysis of Cu or elevated temperatures. The inverse-electron demand Diels-Alder cycloaddition reaction of TCO with tetrazines is the fastest bioorthogonal reaction with exceptional selectivity. The NHS esters can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The hydrophilic PEG linker increases the water solubility properties of the compound. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Silane-PEG-Silane, MW 1,000 has two identical reactive tri-ethoxy silane groups. The silane group enables coupling for surface modification. The PEG chain allows for enhanced water solubility of compounds in aqueous media. Reagent grade, for research purpose.

Silane-PEG-Silane, MW 2,000 has two identical reactive tri-ethoxy silane groups. The silane group enables coupling for surface modification. The PEG chain allows for enhanced water solubility of compounds in aqueous media. Reagent grade, for research purpose.

Silane-PEG-Silane, MW 3,400 has two identical reactive tri-ethoxy silane groups. The silane group enables coupling for surface modification. The PEG chain allows for enhanced water solubility of compounds in aqueous media. Reagent grade, for research purpose.

Silane-PEG-Silane, MW 5,000 has two identical reactive tri-ethoxy silane groups. The silane group enables coupling for surface modification. The PEG chain allows for enhanced water solubility of compounds in aqueous media. Reagent grade, for research purpose.