The molecule is an organic cation obtained by protonation of the tertiary amino group of norajmaline; major structure at pH 7.3. It is an ammonium ion derivative and an organic cation. It is a conjugate acid of a norajmaline.
(1R,9R,10S,12R,13S,14R,17S,18R)-13-ethyl-8-aza-15-azoniahexacyclo[14.2.1.01,9.02,7.010,15.012,17]nonadeca-2,4,6-triene-14,18-diol