Lipids & Polymers

N-(t-butyl ester-PEG6)-N-bis(PEG6-azide) is a 3-arm PEG reagent with a t-butyl ester group and two azide groups. The t-butyl ester groups can be deprotected under acidic conditions. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. Reagent grade, for research purpose.

DBCO-PEG-amine, MW 5,000 is a polyPEG linker which contains DBCO and amine moieties. The DBCO group is commonly used in copper-free Click Chemistry reactions. The amine group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The hydrophilic PEG spacer increases the water solubility of the compound. Reagent grade, for research use only.

t-Boc-N-amido-PEG2-CH2CO2-NHS ester is a PEG linker containing a terminal carboxylic acid and Boc-protected amino group. The hydrophilic PEG spacer increases solubility in aqueous media. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, HATU) to form a stable amide bond. The Boc group can be deprotected under mild acidic conditions to form the free amine. Reagent grade, for research purpose.

HO-PEG-amine HCl salt, MW 2,000 is an HCl salt of a poly PEG linker with terminal amine and hydroxy groups. The compound reacts with an active NHS or PFP ester to form a stable amide linkage. The hydroxyl group can be deprotonated readily for chemical modification. Reagent grade, for research purpose.

(2,2-dimethyl-1,3-dioxan-5-yl)methyl 6-bromohexanoate is a small molecule with an acetonide protection group and a terminal bromide group. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions. Acetonide protection can be removed by hydrolysis of the ketal using dilute aqueous acid. Reagent grade, for research purpose.

3-Arm PEG5-Azide is a PEG linker containing three terminal azide groups. The azide groups enable PEGylation via Click Chemistry. Reagent grade, for research purpose.

3-Arm PEG5-Amine is a PEG linker containing three terminal amine groups. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. Reagent grade, for research purpose.

Azido-PEG8-Amido-Val-Cit-PAB-PNP is a cleavable peptide ADC linker. The Val-Cit will specifically be cleaved by Cathepsin B. PNP groupg is a good leaving group when treating with aminebearing payload. Azido group will react with DBCO, BCN or other Alkyne group through click chemistry, PEG spacer increases aqueous solubility. Reagent grade, for research purpose.

mPEG-DPPE, 2,000 MW is composed of two fatty acids, a glycerol unit, a phosphate group and a poly PEG head. The phosphate group and polar head region of the molecule is hydrophillic, while the fatty acid tail is hydrophobic. mPEG-DPPE, 2,000 MW can be used for lipid nanoparticle (LNP) preparation for siRNA (small interfering RNA) delivery research. Reagent grade, for research purpose.