(E)-2,3,4,4a,5,6,7,11b-Octahydro-9,10-dimethoxybenzo(6,7)cyclohept(1,2-b)(1,4)oxazine 105124-39-8 Benzo(6,7)cyclohept(1,2-b)(1,4)oxazine, 2,3,4,4a,5,6,7,11b-octahydro-9,10-dimethoxy-, (E)-