1,2,3,4-Tetrahydro-13H-benz(g)indole(2,3-a)pyridocolinium nitrate 2,3,4,13- Tetrahydro-1H-benz(g)indolo(2,3-a)quinolizin-6-ium, hydroxide, inner salt 549-92-8 Sempervirene Sempervirine