1-Isothiocyanato-3-(methylsulfonyl)propane 4-04-00-01664 (Beilstein Handbook Reference) 505-34-0 BRN 1768925 Cheirolin Cheiroline ISOTHIOCYANIC ACID, 3-(METHYLSULFONYL)PROPYL ESTER Methylpropylsulfone mustard oil Propane, 1-isothiocyanato-3-(methylsulfonyl)- (9CI)