(-)-(1'S,4aS,7R,8aR)-4a-ethyl-7-hydroxy-1-(1'-phenylethyl)perhydroquinolinium bromide.
In the structure of the title compound, C(19)H(30)NO(+).Br(-), the rings of the perhydroquinolinium moiety are cis fused. The successful reduction of the ketone functionality of the quinolinone used as starting material is confirmed by the hydroxy C-O bond length of 1.428 (3) A.