1-Cyclohexyl-1a,9b-dihydro-1H-phenanthro(9,10-b)azirine 1H-Phenanthro(9,10-b)azirine, 1a,9b-dihydro-1-cyclohexyl- 64188-65-4 BRN 1586733 CCRIS 2136 N-Cyclohexylphenanthrene 9,10-imine N-Cyclohexylphenanthreneimine