3932 Metam-sodium hydrate Metam-sodium hydrate (or Metam-sodium) is an organosulfur compound (formally a dithiocarbamate), which is used as a soil fumigant, pesticide, herbicide, and fungicide. It is one of the most widely used pesticides in the United States, with approximately 60 million pounds used in 2001. Upon exposure to the environment, metam sodium decomposes to form methyl isothiocyanate. 6734-80-1 24180709 C2H10NNaO3S2 White powder. No indication of carcinogenicity to humans (not listed by IARC). 2013-04-25T07:56:52Z 2016-11-09T01:08:59Z true O.O.O.[Na+].CNC([S-])=S C2H10NNaO3S2 InChI=1S/C2H5NS2.Na.3H2O/c1-3-2(4)5;;;;/h1H3,(H2,3,4,5);;3*1H2/q;+1;;;/p-1 QRQDRWKSESXODM-UHFFFAOYSA-M 183.225 182.999979246 Exogenous Solid CHEMBL1870493 21106587 CHEM002838 sodium (methylcarbamothioyl)sulfanide trihydrate