19278-81-0

4-Hydroxycoumaran-3-one 4-Hydroxy-benzofuran-3-one 4-Hydroxy-3(2H)-benzofuranone 4-Hydroxybenzofuran-3(2H)-one 4-hydroxy-1-benzofuran-3(2H)-one 3(2H)-Benzofuranone, 4-hydroxy- 4-hydroxy-2,3-dihydro-1-benzofuran-3-one