Sodium methanethiol is the sodium salt of methyl mercaptan with the formula CH3SNa. Its aqueous solution is light yellow red transparent liquid, odorous, strong alkaline liquid, can be used as pesticides, medicine, dye intermediates raw materials. It can be oxidized to dimethyldisulfide (CH3SSCH3) by iodine and analyzed accordingly. Sodium methanethiate reacts with sulfuric acid to form methyl mercaptan. Sodium methcaptan is an important organic intermediate compound, such as Chemicalbook used as the pesticide cicholin, methampureth and organic intermediate raw materials; Raw materials for food additives methionine, vitamin U, rubber vulcanizing agent; Antidote to hydrogen sulfide poisoning; Odorizer for gas and natural gas, etc. Sodium methanedion is a dangerous good, belonging to the main danger class 8 corrosive and secondary danger 4.1 class flammable solids, export needs to be operated in accordance with the regular dangerous goods, normal can be sent by sea, air and international express.