ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C40H52O2/c1-29(17-13-19-31(3)21-23-35-33(5)37(41)25-27-39(35,7)8)15-11-12-16-30(2)18-14-20-32(4)22-24-36-34(6)38(42)26-28-40(36,9)10/h11-24H,25-28H2,1-10H3/b12-11 ,17-13 ,18-14 ,23-21 ,24-22 ,29-15 ,30-16 ,31-19 ,32-20 /file?format=sdf&get3d=True -- InChI=1S/C40H52O2/c1-29(17-13-19-31(3)21-23-35-33(5)37(41)25-27-39(35,7)8)15-11-12-16-30(2)18-14-20-32(4)22-24-36-34(6)38(42)26-28-40(36,9)10/h11-24H,25-28H2,1-10H3/b12-11 ,17-13 ,18-14 ,23-21 ,24-22 ,29-15 ,30-16 ,31-19 ,32-20 could not be loaded.