CAS Registry Number

CAS 14814-09-6 — 3-Mercaptopropyltriethoxysilane

3-Mercaptopropyltriethoxysilane is an organosilane coupling agent featuring a thiol functional group, widely used in adhesion promotion, surface modification, and cross-linking of materials like rubbers, resins, and composites. It enhances bonding between inorganic fillers and organic polymers, improving mechanical and chemical resistance in coatings, adhesives, and elastomers. This silane has a CAS number of 14814-09-6, molecular formula HS(CH₂)₃Si(OCH₂CH₃)₃, and a molecular weight of 238.42 g/mol. Store it between 2–8°C under inert conditions, as it carries a **Danger** signal word for acute toxicity and flammability. Molekula supplies 3-Mercaptopropyltriethoxysilane from research to bulk quantities with full documentation and ISO 9001:2015 traceability.