Why is the ninth month called September?
sulfoxide sulf·ox·ide (sŭl-fŏk'sīd')
Any of various compounds that contain a sulfinyl group.
any of a class of organic compounds containing sulfur and oxygen and having the general formula (RR') SO, in which R and R' are a grouping of carbon and hydrogen atoms. The sulfoxides are good solvents for salts and polar compounds.