ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1%28%3DNC%28NC1%28C%28F%29%28F%29F%29C%28F%29%28F%29F%29%28C%28F%29%28F%29F%29C%28F%29%28F%29F%29N/file?format=sdf&get3d=True -- C1%28%3DNC%28NC1%28C%28F%29%28F%29F%29C%28F%29%28F%29F%29%28C%28F%29%28F%29F%29C%28F%29%28F%29F%29N could not be loaded.