4-(3,5-dihydroxyphenoxy)oxanthrene-1,3,6,8-tetrol 88798-74-7 AIDS-209851 AIDS209851 Dibenzo[b,e][1,4]dioxin-1,3,6,8-tetrol, 4-(3,5-dihydroxyphenoxy)- Eckol 1-(3,5-Dihydroxyphenoxy)-2,4,7,9-tetrahydroxydibenzo-1,4-dioxin Dibenzo(b,e)(1,4)-dioxin-1,3,6,8-tetrol, 4-(3,5-dihydroxyphenoxy)-