Cyclic selenium sulfides.
D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D006862:Hydrogen Sulfide; D007202:Indicators and Reagents; D007536:Isomerism; D007928:Lethal Dose 50; D051379:Mice; D012643:Selenium / Q000633:toxicity; D018036:Selenium Compounds
D007202:Indicators and Reagents; D018036:Selenium Compounds; D012643:Selenium; D006862:Hydrogen Sulfide; C025698:selenium disulfide