Lipids & Polymers

t-Boc-N-amido-PEG3-NHS ester is a PEG linker containing an NHS ester and a t-Boc protected amine group. The hydrophilic PEG spacer increases the solubility of compounds in aqueous media. The t-Boc group can be deprotected under mild acidic conditions to form a free amine. 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.

DBCO-PEG4-DBCO is a homobifunctional PEG linker containing two DBCO groups and a hydrophilic PEG spacer arm. DBCO will react with azide-bearing compounds or biomolecules to form a stable triazole linkage without copper catalyst. The hydrophilic PEG spacer arm can increase water solubility and membrane permability. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-Boc-PEG4-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.

Bis-DBCO-PEG4 is a homobifunctional PEG linker containing two terminal DBCO moieties. DBCO will react with azide-bearing compounds or biomolecules to form a stable triazole linkage without copper catalyst. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

ALC-0159 is a PEGylated lipid which has been used to form lipid nanoparticles for delivery of RNA. ALC-0159 is one of the components in the BNT162b2 vaccine against SARS-CoV-2 in addition to ALC-0315 DSPC and cholesterol. A small amount of a PEG derivatized lipid like ALC-0159 [0.5-3%] is incorporated into LNPs to increase the circulatory half-life in the body. This is a reagent grade product for research use only.

Acid-PEG14-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.

Methyltetrazine-PEG4-triethoxysilane is a click chemistry linker containing a triethoxysilane moiety and a methyltetrazine group. Triethoxysilane is commonly used for surface modifications. 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 hydrophilic PEG chain increases the water solubility of a compound in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

DSPE-Azide is an azido phospholipid molecule with a hydrophilic phosphate head connected to two hydrophobic saturated fatty acids by a glycerol molecule. In water, the molecule can orient itself into lipid bilayer and can be used for drug encapsulation, such as drug loaded liposomes or nanoparticles. The molecule can react rapidly with cyclooctyne, such as DBCO/BCN or with terminal alkyne in the presence of Cu Catalyst. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

DSPE-MAL is a thiol reactive a phospholipid compound. It has two saturated fatty acids and can self-assemble in water to form lipid bilayer. The molecule can be used to prepare liposomes as drug nanocarrier. The maleimide moiety can react with cysteine or other thiol molecule for bioconjugation. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.