The molecule is an ammonium ion resulting from the protonation of the piperidine nitrogen of raloxifene. The major species at pH 7.3. It is a conjugate acid of a raloxifene.
[6-hydroxy-2-(4-hydroxyphenyl)-1-benzothiophen-3-yl]-[4-(2-piperidin-1-ium-1-ylethoxy)phenyl]methanone