4-12-00-01938 (Beilstein Handbook Reference) 4-Tolylisothiocyanate 622-59-3 BRN 0386032 EINECS 210-745-5 ISOTHIOCYANIC ACID, 4-TOLYL ESTER Isothiocyanic acid, p-tolyl ester p-Tolyl isothiocyanate