xanthic acids [obsolete]

Compounds having the structure ROC(=S)SH. Thus O-esters of dithiocarbonic acid. Salts and esters of xanthic acid are xanthates. Use of this term is not recommended.
PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1374 (https://doi.org/10.1351/pac199567081307)