CAS Registry Number

CAS 1066-54-2 — Ethynyltrimethylsilane

Ethynyltrimethylsilane is a silane coupling agent with a terminal alkyne group, widely used in organic synthesis, polymer chemistry, and materials science for cross-linking, surface modification, and creating silicon-carbon bonds. It serves as a key reagent in the preparation of silylated intermediates, silicon-based polymers, and hybrid materials. This chemical has a CAS number of 1066-54-2, with the molecular formula (CH3)3SiC≡CH and a molecular weight of 98.22. It must be stored between 2 to 8°C and is classified with a signal word of "Danger" due to its hazardous properties. Molekula supplies Ethynyltrimethylsilane from research to bulk quantities with full documentation and ISO 9001:2015 traceability.