2H-1-Benzopyran-2-one, 7-hydroxy-4-methyl-3-(phenylmethyl)- 3-Benzyl-4-methylumbelliferon 3-Benzyl-7-hydroxy-4-methyl-2H-chromen-2-one 86-44-2 AIDS-124676 AIDS124676 Benzyl .beta.-methylumbelliferone Coumarin, 3-benzyl-7-hydroxy-4-methyl- NSC43673