The molecule is an ammonium ion resulting from the protonation of the nitrogen of the dimethylaminoethyl substituent of diltiazem. The major species at pH 7.3. It has a role as a histamine agonist, a calcium channel blocker and a vasodilator agent. It is a conjugate acid of a diltiazem. It is an enantiomer of an ent-diltiazem(1+).
2-[(2S,3S)-3-acetyloxy-2-(4-methoxyphenyl)-4-oxo-2,3-dihydro-1,5-benzothiazepin-5-yl]ethyl-dimethylazanium