ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C44H57N3O12/c1-19-15-14-16-20(2)42(54)45-33-30-28(43(55)46(10)11)25(7)47(12)34(30)29-31(38(33)52)37(51)24(6)40-32(29)41(53)44(9,59-40)57-18-17-27(56-13)21(3)39(58-26(8)48)23(5)36(50)22(4)35(19)49/h14-19,21-23,27,35-36,39,49-52H,1-13H3,(H,45,54)/b15-14-,18-17+,20-16?/file?format=sdf&get3d=True  -- InChI=1S/C44H57N3O12/c1-19-15-14-16-20(2)42(54)45-33-30-28(43(55)46(10)11)25(7)47(12)34(30)29-31(38(33)52)37(51)24(6)40-32(29)41(53)44(9,59-40)57-18-17-27(56-13)21(3)39(58-26(8)48)23(5)36(50)22(4)35(19)49/h14-19,21-23,27,35-36,39,49-52H,1-13H3,(H,45,54)/b15-14-,18-17+,20-16? could not be loaded.