1-Isothiocyanato-3-(methylthio)propane 3-Methylmercaptopropyl isothiocyanate 3-Methylthiopropyl isothiocyanate 505-79-3 EINECS 208-020-3 FEMA No. 3312 Isothiocyanic acid, 3-(methylthio)propyl ester PROPANE, 1-ISOTHIOCYANATO-3-(METHYLTHIO)-