6-Quinazolinecarboxylicacid, 1,4-dihydro-4-oxo- (9CI);6-Quinazolinecarboxylic acid, 4-hydroxy- (8CI);3,4-Dihydro-4-oxoquinazoline-6-carboxylic acid;4-Oxo-3,4-dihydroquinazoline-6-carboxylic acid;1,4-Dihydro-4-oxoquinazoline-6-carboxylic acid;
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