Methyl thiocyanate (556-64-9)

 Methyl thiocyanate (CAS NO.556-64-9) is also called 4-03-00-00327 (Beilstein Handbook Reference) ; AI3-16178 ; BRN 1098357 ; HSDB 5691 ; Methane, thiocyanato- ; Methyl rhodanate ; Methyl sulfocyanate ; Methylrhodanid
 ; Methylthiokyanat ; NSC 9368 ; Thiocyanic acid, methyl ester . Methyl thiocyanate (CAS NO.556-64-9) is colorless liquid with an odor of onions and is very slightly soluble in water.  Methyl thiocyanate is a moderately toxic liquid, flammable. Violent, possibly explosive oxidation reaction when mixed with chlorates, nitrates, nitric acid, organic or inorganic peroxides, perchlorates. On contact with mineral acids or acid fumes deadly toxic hydrogen cyanide gas is produced. When heated to decomposition or on contact with mineral acids, Methyl thiocyanate emits highly toxic fumes of nitriles, oxides of sulfur and nitrogen. Methyl thiocyanate is highly toxic if ingested. It is a rapidly acting poison. Methyl thiocyanate (CAS NO.556-64-9) is Incompatible with nitric acid. Violent reactions have occurred when mixed with chlorates, nitrates, nitric acid, organic peroxides, peroxides, potassium chlorate, and sodium chlorate. Methyl thiocyanate is volatile. So the storage environment should be ventilate, low-temperature and dry. Keep  Methyl thiocyanate (CAS NO.556-64-9) separate from oxidants, acids, and food additives.

Reported in EPA TSCA Inventory. EPA Extremely Hazardous Substances List.