2-Benzamido-3-methylthio-crotonic acid 4-09-00-00818 (Beilstein Handbook Reference) 88612-31-1 BRN 3277264 Benzoylamino-beta,beta-dimethylacrylic thiol acid Crotonic acid, 2-benzamido-3-methylthio- HIPPURIC ACID, alpha-ISOPROPYLIDENE