2H-1-Benzopyran-2-one, 4-hydroxy-3-(.alpha.-naphthyl)- 2H-1-Benzopyran-2-one, 4-hydroxy-3-(1-naphthalenyl)- 39923-41-6 4-Hydroxy-3-(.alpha.-naphthyl)-2H-1-benzopyran-2-one 4-Hydroxy-3-(.alpha.-naphthyl)coumarin 4-Hydroxy-3-(1-naphthyl)-2H-chromen-2-one 4-Hydroxy-3-(1-naphthyl)coumarin AIDS-128175 AIDS128175 Coumarin, 4-hydroxy-3-(.alpha.-naphthyl)- NSC240925