bisphenylhydrazone of 1,3-indandione;indan-1,3-dione bis-phenylhydrazone;α.γ-Diketo-hydrinden-bis-phenylhydrazon;1.3-Bis-phenylhydrazono-hydrinden;Indan-1,3-dion-bis-phenylhydrazon;Bis-phenylhydrazon-indandion-(1,3);N-[[3-(phenylhydrazinylidene)inden-1-ylidene]amino]aniline