Topic summary
Sodium methanethiolate
Sodium methanethiolate or sodium thiomethoxide is an organosulfur compound with the formula CH3SNa. It is the sodium salt of the conjugate base of methanethiol. This compound is commercially available as a white solid that is soluble in polar organic solvents. Sodium methanethiolate is a reagent in organic synthesis and a byproduct of some industrial processes. Hydrolysis of sodium methanethiolate, e.g. in humid air, produces methanethiol, which has a low odor threshold and a noxious "rotten egg" smell.