a simple and rapid analytical procedure is described for n-acetyl-s- ( n-alkylthiocarbamoyl ) -l-cysteine ( alkyl = benzyl , allyl , methyl , ethyl or n-butyl ) , a mercapturic acid with an unstable dithiocarbamic acid ester structure , which is found in rat urine as the principal metabolite of the corresponding alkyl isothiocyanate .
C0010654
l-cysteine
C0001047
mercapturic acid