4-Carboxymethoxy-5,7-dinitroindolinyl-Glu: an improved caged glutamate for expeditious ultraviolet and two-photon photolysis in brain slices. Posted on June 20, 2007October 18, 2017 by Tsai-Yi Lu J Neurosci. 2007 Jun 20;27(25):6601-4. 4-Carboxymethoxy-5,7-dinitroindolinyl-Glu: an improved caged glutamate for expeditiousultraviolet and two-photon photolysis in brain slices. Ellis-Davies GC, Matsuzaki M, Paukert M, Kasai H, Bergles DE.