ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C50H74O3/c1-39(2)31-34-46(49(11,12)52)35-32-44(7)29-19-27-42(5)25-17-23-40(3)21-15-16-22-41(4)24-18-26-43(6)28-20-30-45(8)33-36-47(50(13,14)53)37-38-48(9,10)51/h15-33,35-36,46-47,51-53H,34,37-38H2,1-14H3/file?format=sdf&get3d=True  -- InChI=1S/C50H74O3/c1-39(2)31-34-46(49(11,12)52)35-32-44(7)29-19-27-42(5)25-17-23-40(3)21-15-16-22-41(4)24-18-26-43(6)28-20-30-45(8)33-36-47(50(13,14)53)37-38-48(9,10)51/h15-33,35-36,46-47,51-53H,34,37-38H2,1-14H3 could not be loaded.