ERROR opening https://cactus.nci.nih.gov/chemical/structure/CCOC%28%3DO%29OCC1C%28C%28C%28C%28O1%29Oc2ccccc2Cc3ccc%28cc3%29OC%29O%29O%29O/file?format=sdf&get3d=True  -- CCOC%28%3DO%29OCC1C%28C%28C%28C%28O1%29Oc2ccccc2Cc3ccc%28cc3%29OC%29O%29O%29O could not be loaded.