4786-52-1 5-Pyrimidinecarboxylic acid, 1,4-dihydro-4-oxo-, ethyl ester 5-Pyrimidinecarboxylic acid, 4-hydroxy-, ethyl ester Ethyl 4-hydroxy-5-pyrimidinecarboxylate NSC69216 WLN: T6N CNJ DQ EVO2