The molecule is an organic cation obtained by protonation of the secondary amino group of rolapitant. It is an ammonium ion derivative and an organic cation. It is a conjugate acid of a rolapitant.
(5S,8S)-8-[[(1R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]methyl]-8-phenyl-1-aza-9-azoniaspiro[4.5]decan-2-one