English name: Thionyl chloride
Chinese alias: thionyl chloride
CAS RN: 7719-09-7
EINECS Number: 231-748-8
Molecular formula: SOCl₂
Molecular weight: 118.9704
Structural formula:

Physical and chemical properties: colorless or light yellow volatile liquid with strong suffocating odor.

Uses: used in medicine, pesticides and dyes industries, mainly used in the production of ammonium phosphine, quick-killer, ketamine, indomethacin, vitamin A, etc.