1,2-Dibenzylidenehydrazine 1,4-Diphenylformalazine 588-68-1 Benzalazine Benzaldazin Benzaldazine Benzaldehyde azine Benzaldehyde, (phenylmethylene)hydrazone Benzylideneazine Dibenzalazine Dibenzalhydrazine Dibenzylidenehydrazine EINECS 209-627-6 Eusolex Eusolex 6653 NSC 3269