2H-1-Benzopyran-2-one, 4-hydroxy-3-(2-naphthyl)- 4-Hydroxy-3-(beta-naphthyl)-2H-1-benzopyran-2-one 4-Hydroxy-3-(beta-naphthyl)coumarin 5-18-02-00410 (Beilstein Handbook Reference) 73791-16-9 BRN 1289401 COUMARIN, 4-HYDROXY-3-(beta-NAPHTHYL)-