61109-29-3 Benzenesulfonic acid,4-[4-[(2,4-dimethylphenyl)azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]-, sodium salt
64225-58-7 Benzenesulfonic acid,4-[3-ethoxy-4-[5-[3-ethoxy-1,5-dihydro-5-oxo-1-(4-sulfophenyl)-4H-pyrazol-4-ylidene]-1,3-pentadienyl]-5-hydroxy-1H-pyrazol-1-yl]-, disodium salt