Salts (usually sodium salts) of S-alkylthiosulfuric acid, of general structure
RSS(=O)2O−M+
. Use of this term is discouraged.
Source: PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1323 [Terms] [Paper]