In organic and organometallic chemistry, trisulfide is the functional group R-S-S-S-R.
Examples include: Diallyl trisulfide Dimethyl trisulfide Trisulfane (hydrogen trisulfide)
Some inorganic compounds are also named trisulfides to reflect their stoichiometry.
Examples include:
Antimony trisulfide Arsenic trisulfide Bismuth trisulfide Diboron trisulfide Diiron trisulfide Molybdenum trisulfide Phosphorus trisulfide
See also Chalcogenide Triselenide Disulfide Polysulfide