Basu Baul, Tushar S.Dhar, SushmitaTiekink, Edward Richard Tom2007-02-252007-02-252000Acta Crystallographica Section C-Crystal Structure Communications. 56(10):1280-12810108-2701http://hdl.handle.net/2440/4295The title compound, C₁₄H₁₂N₂O₄, shows an E conformation about the diazenyl N atoms. The crystal structure features layers of mol­ecules with the primary connection between the layers afforded by carboxyl­ic acid dimer motifs; no evidence for extensive π–π stacking between the layers was found.en© 2000 International Union of Crystallography. Printed in Great Britain. All rights reservedJournal article000100077510.1107/S0108270100010118