ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%26%2361%3B1S/C55H73N4O5.Mg/c1-13-39-35%288%2942-28-44-37%2810%2941%2824-25-48%2860%2964-27-26-34%287%2923-17-22-33%286%2921-16-20-32%285%2919-15-18-31%283%294%2952%2858-44%2950-51%2855%2862%2963-12%2954%2861%2949-38%2811%2945%2859-53%2849%2950%2930-47-40%2814-2%2936%289%2943%2857-47%2929-46%2839%2956-42%26%2359%3B/h13%2C26%2C28-33%2C37%2C41%2C51H%2C1%2C14-25%2C27H2%2C2-12H3%2C%28H-%2C56%2C57%2C58%2C59%2C61%29%26%2359%3B/q-1%26%2359%3B%2B2/p-1/b34-26%2B%26%2359%3B/t32-%2C33-%2C37%2B%2C41%2B%2C51-%26%2359%3B/m1./s1/file?format=sdf&get3d=True -- InChI%3DInChI%26%2361%3B1S/C55H73N4O5.Mg/c1-13-39-35%288%2942-28-44-37%2810%2941%2824-25-48%2860%2964-27-26-34%287%2923-17-22-33%286%2921-16-20-32%285%2919-15-18-31%283%294%2952%2858-44%2950-51%2855%2862%2963-12%2954%2861%2949-38%2811%2945%2859-53%2849%2950%2930-47-40%2814-2%2936%289%2943%2857-47%2929-46%2839%2956-42%26%2359%3B/h13%2C26%2C28-33%2C37%2C41%2C51H%2C1%2C14-25%2C27H2%2C2-12H3%2C%28H-%2C56%2C57%2C58%2C59%2C61%29%26%2359%3B/q-1%26%2359%3B%2B2/p-1/b34-26%2B%26%2359%3B/t32-%2C33-%2C37%2B%2C41%2B%2C51-%26%2359%3B/m1./s1 could not be loaded.