2H-Benzo(a)quinolizine, 3-ethyl-1,3,4,6,7,11b-hexahydro-9,10-dimethoxy-2-((1,2,3,4-tetrahydro-6-isopentoxy-7-methoxy-1-isoquinolyl)methyl)-, phosphate 64048-68-6 Isoamyl cephaeline phosphate