ERROR opening https://cactus.nci.nih.gov/chemical/structure/P12%28%3DS%29SP3%28%3DS%29SP%28%3DS%29%28S1%29SP%28%3DS%29%28S2%29S3/file?format=sdf&get3d=True -- P12%28%3DS%29SP3%28%3DS%29SP%28%3DS%29%28S1%29SP%28%3DS%29%28S2%29S3 could not be loaded.