1. Feng , S. Sun , X. Chen , J. Zheng , H. Wang , Y. Method for preparing 2′,7′-dichloro-5(6)-carboxyfluorescein isomer
2. Coleman , D. J. Naleway , J. J. Fluorogenic enzyme substrates for visualizing acidic organelles
3. Synthesis and fluorescent properties of 2′,7′-dichloro-5(6)-carboxyfluorescein;Ge;Huaxue Tongbao,2009
4. Membrane-permeable and -impermeable sensors of the Zinpyr family and their application to imaging of hippocampal zinc in vivo;Woodroofe;Chem. Biol.,2004
5. Lippard , S. J. Woodroofe , C. C. Sensors, and methods of making and using the same