2-Hydroxy-2-(3'-methoxybutyl)-3-isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-benzoquinolizine hydrochloride 2H-Benzo(a)quinolizin-2-ol, 1,3,4,6,7,11b-hexahydro-9,10-dimethoxy-2-(3-methoxybutyl)-3-(2-methylpropyl)-, hydrochloride 37819-46-8 Ro 4-1398 Ro4-1398 hydrochloride