Methyl thiocyanate556-64-9100 % similar Ethyl thiocyanate542-90-542 % similar Methylene bis(thiocyanate)6317-18-641 % similar Chloromethyl thiocyanate3268-79-935 % similar Butyl thiocyanate628-83-135 % similar Pentyl thiocyanate32446-40-533 % similar