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6-Hydroxyindazole 6-Hydroxyindole Isoquinolin-6-ol 4-Pyrimidinecarboxylic acid Ethyl 4-hydroxypyrimidine-5-carboxylate 2,4-DIMETHOXYPYRIMIDINE-6-CARBOXYLIC ACID Orotic acid Lithium orotate 4-PYRIMIDINECARBOXYLIC ACID, 1,6-DIHYDRO-5-HYDROXY-2-[1-METHYL-1-[[(PHENYLMETHOXY)CARBONYL]AMINO]ETHYL]-6-OXO-, METHYL ESTER 5-METHYLOROTIC ACID