, with a chain of sulfur atoms (n ≥ 2) and R
. Some chemists exclude disulfides, RS2R
, from the class polysulfides.
PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1360 (https://doi.org/10.1351/pac199567081307)