1,3-Dihydro-3-oxoisobenzofuran-1-ylidenebis(6-hydroxy-5-methyl-m-phenylenemethylenenitrilo)tetra-acetic acid 2-Cresolphthalexon 2411-89-4 3,3'-Bis(N,N-di(carboxymethyl)aminomethyl)-o-cresolphthalein 62698-54-8 Cresolphthalein complexon Cresolphthalein complexone Cresolphthalexon EINECS 219-318-8 Glycine, N,N'-((3-oxo-1(3H)-isobenzofuranylidene)bis((6-hydroxy-5-methyl-3,1-phenylene)methylene))bis(N-(carboxymethyl)- N,N'-((3-Oxo-1(3H)-isobenzofuranylidene)bis((6-hydroxy-5-methyl-3,1-phenylene)methylene))bis(N-(carboxymethyl)glycine NSC 298195 o-Cresolphthalein complexon o-Cresolphthalein complexone