The chemical MPTP hydrochloride has a known molecular formula of C12-H15-N.Cl-H. Synonyms may include: N-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine hydrochloride, 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine hydrochloride, 1,2,3,6-Tetrahydro-1-methyl-4-phenylpyridine hydrochloride, UNII-5O1K9K2EZM (ChemID).