Compounded 4-aminopyridine CAS 504-24-5 can block voltage dependent potassium ion channels in other nerve membranes. 4-aminopyridine CAS 504-24-5 drug intermediate in organic chemistry is a K+channel blocker that can cause epileptic discharges in vitro experiments and is a potent convulsive agent in both animals and humans. 4-Aminopyridine, with the chemical formula C5H4N-NH2 and CAS (Chemical Abstracts Service) number 504-24-5, is a compound that belongs to the pyridine class of organic compounds. It is commonly referred to as 4-AP. Compounded 4-aminopyridine CAS 504-24-5 drug intermediate in organic chemistry aminopyridine medication have the Pharmacological Activity, Neurological Research, Treatment of Multiple Sclerosis (MS), Veterinary Medicine: It has also been explored for veterinary applications, particularly in the treatment of certain neurological conditions in animals.