(4-((4-(Diethylamino)phenyl)phenylmethylene)-2,5-cyclohexadien-1-ylidene)diethylammonium acetate 76994-37-1 EINECS 278-585-9 Ethanaminium, N-(4-((4-(diethylamino)phenyl)phenylmethylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-, acetate