2,4,7-phenanthrenetriol, triacetate InChI=1/C20H16O6/c1-11(21)24-16-6-7-18-14(8-16)4-5-15-9-17(25-12(2)22)10-19(20(15)18)26-13(3)23/h4-10H,1-3H phenanthrene-2,4,7-triyl triacetate