54191-04-7 6H-Dibenzo(3,4:6,7)cyclohept(1,2-b)oxirene, piperidine deriv. BRN 4916015 Cyproheptadine 10,11-epoxide Cyproheptadine epoxide Cyproheptadine-10,11-epoxide Piperidine, 4-(1a,10b-dihydro-6H-dibenzo(3,4:6,7)cyclohept(1,2-b)oxiren-6-ylidene)-1-methyl-