ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C41H50N2O11/c1-16-11-22-30(37-28(16)24(44)14-27(53-37)41(6)39(54-41)36-18(3)52-36)35(48)31-29(34(22)47)20(25-13-23(42(7)8)32(45)17(2)50-25)12-21(33(31)46)26-15-40(5,43(9)10)38(49)19(4)51-26/h11-12,14,17-19,23,25-26,32,36,38-39,45-46,49H,13,15H2,1-10H3/file?format=sdf&get3d=True  -- InChI=1S/C41H50N2O11/c1-16-11-22-30(37-28(16)24(44)14-27(53-37)41(6)39(54-41)36-18(3)52-36)35(48)31-29(34(22)47)20(25-13-23(42(7)8)32(45)17(2)50-25)12-21(33(31)46)26-15-40(5,43(9)10)38(49)19(4)51-26/h11-12,14,17-19,23,25-26,32,36,38-39,45-46,49H,13,15H2,1-10H3 could not be loaded.