Oxonole blue dipotassium salt

oxonole blue ; 1,1-bis(4-sulfophenyl)-3,3-dicarboxy-5,5-dihydroxypyrazolo-4,4-pentamethineoxonole dipotassium salt ; bis{3-carboxy-1-(4''-sulfophenyl-2-pyrazoline-5-one-4-yl)}pentamethineoxonol dipotassium salt ; oxonole blue, dipotassium salt ; 4,4''-bis-[1-(4-sulfophenyl)-3-carboxy-2-pyrazoline-5-one]-pentamethine oxon ; 1,1'-bis(4-sulfophenyl)-3,3'-dicarboxy-5,5'-dihydroxypyrazolo-4,4'-penta-methine oxonole dipotassium salt ; pina(r) oxonol blue 628 ; 4-pentadienylidene]-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-yrazol-4-yl]-dipota ; 4,4'-bis[3-carboxy-5-oxo-1-(4-sulfophenyl)-2-pyrazolin-4-yl]pentamethine oxonole dipotassium salt ; 1h-pyrazole-3-carboxylicacid,4-[5-[3-carboxy-5-hydroxy-1-(4-sulfophenyl)-1h-p