
Sodium thiosulfate | Na2S2O3
CID (Sodium) Date s. Modify. . Create. . Sodium thiosulfate is an inorganic sodium salt composed of sodium and thiosulfate ions in a 2:1 ratio. It has a role as an antidote to cyanide poisoning, a nephroprotective agent and an antifungal drug. It contains a thiosulfate (2).