36822-11-4 4(1H)-Pyrimidinone, 2,3-dihydro-6-phenyl-2-thioxo- 6-Phenyl-2-thiouracil 6-Phenylthiouracil AI3-26584 EINECS 253-227-4 NSC 163991 NSC 42600 Phenylthiouracil