1,2-Dihydro-5-acenaphthylenamine 3-12-00-03212 (Beilstein Handbook Reference) 4657-93-6 5-Acenaphthenamine 5-Acenaphtheneamine 5-Acenaphthylenamine, 1,2-dihydro- 5-Acenaphthylenamine, 1,2-dihydro- (9CI) 5-Aminoacenaphthene BRN 2094079 NSC 137427