5-Oxo-6-amino-7-ketimino-6-phenyldibenzo(a,c)cycloheptan 5H-Dibenzo(a,c)cyclohepten-5-one, 6,7-dihydro-7-imino-6-phenyl- 7-Imino-6-phenyl-6,7-dihydro-5H-dibenzo(a,c)cyclohepten-5-one HP1160000