1,3-Dimethyl-4-hydroxy-7-methoxycarbostyril 2(1H)-Quinolinone, 1,3-dimethyl-4-hydroxy-7-methoxy- 2(1H)-Quinolinone, 4-hydroxy-7-methoxy-1,3-dimethyl- (9CI) 5-21-13-00139 (Beilstein Handbook Reference) 53207-43-5 BRN 1463540 CARBOSTYRIL, 1,3-DIMETHYL-4-HYDROXY-7-METHOXY- NSC 193536