ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C28H38N2O4/c1-5-17-16-30-9-7-19-13-27%2833-3%2928%2834-4%2915-22%2819%2924%2830%2911-20%2817%2910-23-21-14-26%2832-2%2925%2831%2912-18%2821%296-8-29-23/h12-15%2C17%2C20%2C23-24%2C29%2C31H%2C5-11%2C16H2%2C1-4H3/t17-%2C20-%2C23%20%2C24-/m0/s1/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C28H38N2O4/c1-5-17-16-30-9-7-19-13-27%2833-3%2928%2834-4%2915-22%2819%2924%2830%2911-20%2817%2910-23-21-14-26%2832-2%2925%2831%2912-18%2821%296-8-29-23/h12-15%2C17%2C20%2C23-24%2C29%2C31H%2C5-11%2C16H2%2C1-4H3/t17-%2C20-%2C23%20%2C24-/m0/s1 could not be loaded.