2H-1-Benzopyran-2-one, 4-ethyl-7-hydroxy-3-(4-methoxyphenyl)- (9CI) 4-18-00-01864 (Beilstein Handbook Reference) 4-Ethyl-7-hydroxy-3-(p-methoxyphenyl)coumarin 5219-17-0 BRN 0272991 COUMARIN, 4-ETHYL-7-HYDROXY-3-(p-METHOXYPHENYL)- NSC 82441 SC 7801