ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C50H72N4O12/c1-11-12-13-14-15-16-21-53-22-24-54(25-23-53)51-27-35-40-45(60)38-37(44(35)59)39-47(33(7)43(38)58)66-50(9,48(39)61)64-26-20-36(63-10)30(4)46(65-34(8)55)32(6)42(57)31(5)41(56)28(2)18-17-19-29(3)49(62)52-40/h17-20,26-28,30-32,36,41-42,46,51,56-58,60H,11-16,21-25H2,1-10H3,(H,52,62)/b18-17+,26-20+,29-19+,35-27?/file?format=sdf&get3d=True  -- InChI=1S/C50H72N4O12/c1-11-12-13-14-15-16-21-53-22-24-54(25-23-53)51-27-35-40-45(60)38-37(44(35)59)39-47(33(7)43(38)58)66-50(9,48(39)61)64-26-20-36(63-10)30(4)46(65-34(8)55)32(6)42(57)31(5)41(56)28(2)18-17-19-29(3)49(62)52-40/h17-20,26-28,30-32,36,41-42,46,51,56-58,60H,11-16,21-25H2,1-10H3,(H,52,62)/b18-17+,26-20+,29-19+,35-27? could not be loaded.