The molecule is conjugate acid of (6S)-6-hydroxyhyoscyamine arising from protonation of the bridging tertiary amino function. It is a conjugate acid of a (6S)-6-hydroxyhyoscyamine.
[(1R,3S,5R,6S)-6-hydroxy-8-methyl-8-azoniabicyclo[3.2.1]octan-3-yl] 3-hydroxy-2-phenylpropanoate