3,7-Dhbco 3,7-Dihydroxy-2-(1,4-benzodioxan-6-yl)chroman-4-one 4H-1-Benzopyran-4-one, 2-(2,3-dihydro-1,4-benzodioxin-6-yl)-2,3-dihydro-3,7-dihydroxy-, trans- 79986-03-1