5-Pyrimidinecarboxylic acid, 4-amino-1,2-dihydro-2-thioxo-, ethyl ester (9CI) 5-Pyrimidinecarboxylic acid, 4-amino-2-mercapto-, ethyl ester 774-07-2 Ethyl 4-amino-2-mercapto-5-pyrimidinecarboxylate NSC 9308