CAS Registry Number

CAS 78-10-4 — Tetraethoxysilane

Tetraethoxysilane is a silicon-based precursor used in sol-gel processes, coatings, and the synthesis of silica materials. It is a colorless liquid that hydrolyzes readily in moisture. It is also used to consolidate and weatherproof stone and masonry, in heat- and chemical-resistant paints, in investment casting of high-melting alloys, and for silicon dioxide deposition in semiconductor manufacturing. CAS: 78-10-4, molecular formula: Si(OC₂H₅)₄, molecular weight: 208.33 g/mol, stored at ambient temperature. Signal word: Warning. Molekula supplies Tetraethoxysilane from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Also known as: Dynasil A · Ethyl orthosilicate · ETHYL SILICATE · Silicon ethoxide · Silicon tetraethoxide · Silikan L · TEOS · Tetraethoxysilicon · Tetraethyl orthosilicate · Tetraethyl silicate · TEOS (Tetraethoxysilane) · Tetraethylorthosilicate