زانتات

Also known as xanthates

thumb|150px|right|Sodium salt of ethyl xanthate ([[sodium ethylxanthate or sodium O-ethyl dithiocarbonate)]] thumb|150px|Structure of a xanthate ester thumb|Cellulose xanthate. A xanthate is a salt or ester of a xanthic acid. The formula of the salt of xanthic acid is (where R is organyl group and M is usually Na or K). Xanthate also refers to the anion . The formula of a xanthic acid is , such as ethyl xanthic acid, while the formula of a xanthate ester is , where R and R' are organyl groups. The salts of xanthates are sometimes called O-organyl dithioates. The esters of xanthic acid are some