20684-88-2 4-03-00-00271 (Beilstein Handbook Reference) 463-58-1 BRN 1697284 CARBONYL SULFIDE Carbon monoxide monosulfide Carbon oxide sulfide Carbon oxide sulfide (9CI) Carbon oxide sulfide (COS) Carbon oxysulfide Carbonyl sulfide [UN2204] [Poison gas] Carbonyl sulphide EINECS 207-340-0 HSDB 6127 Oxycarbon sulfide UN2204