2,7-Dinitro-9,10-dihydrophenanthrene 2,7-Dinitro-9-10-dihydrophenanthrene 69533-68-2 9,10-Dihydro-2,7-dinitrophenanthrene BRN 2151582 CCRIS 3376 Phenanthrene, 9,10-dihydro-2,7-dinitro-