ERROR opening https://cactus.nci.nih.gov/chemical/structure/CCCC%28C%29%28C1CC23C%26%2361%3BCC1%28C4C25CCN%28C3CC6%26%2361%3BC5C%28%26%2361%3BC%28C%26%2361%3BC6%29OC%28%26%2361%3BO%29C%29O4%29C%29OC%29O/file?format=sdf&get3d=True -- CCCC%28C%29%28C1CC23C%26%2361%3BCC1%28C4C25CCN%28C3CC6%26%2361%3BC5C%28%26%2361%3BC%28C%26%2361%3BC6%29OC%28%26%2361%3BO%29C%29O4%29C%29OC%29O could not be loaded.