(3S,NR)-3-Hydroxymethyl-2-methyl-2-(3-methylbut-2-en-1-yl)-1,2,3,4-tetrahydroisoquinolinium bromide–1,1′-bi-2-naphthol (1/1)

In the title compound, C16H24NO+·Br−·C20H14O2, the N-heterocyclic six-membered ring assumes a half-chair conformation. The two naphthalene ring systems are nearly perpendicular to one another, making a dihedral angle of 89.5 (2)°. Intermolecular O—H...Br hydrogen bonding helps to stabilize the crystal structure