2,3-Dihydro-9-hydroxy-7H-furo(3,2-g)(1)benzopyran-7-one 2,3-Dihydroxanthotoxol 68123-30-8 7H-Furo(3,2-g)(1)benzopyran-7-one, 2,3-dihydro-9-hydroxy- EINECS 268-548-5