Selenium disulfide Molecular mass: 143.09 g/mol Other names: selenium(IV) sulfide; selenium disulphide, Exsel, Selsun, SeS2 Warnings: TOXIC, Dangerous for the environment Risk Statements: 23/25-33-50/53 Safety Statements: 20/21-28-45-60-61 RID/ADR: 6.1 (III) UN 2657