2H-3-benzoxacyclododecin-2,7,10(1H,4H)-trione, 5,6,8,9-tetrahydro-8,11,13-trihydroxy-4-methyl- 8,11,13-trihydroxy-4-methyl-5,6,8,9-tetrahydro-2H-3-benzoxacyclododecine-2,7,10(1H,4H)-trione InChI=1/C16H18O7/c1-8-2-3-11(18)12(19)7-14(21)16-9(5-15(22)23-8)4-10(17)6-13(16)20/h4,6,8,12,17,19-20H,2-3,5,7H2,1H