| Synonyms |
1-Naphthalenesulfonic acid, 7-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-3-hydroxy-; 7-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-3-hydroxy-1-naphthalenesulfonic acid; 7-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-3-hydroxynaphthalene-1-sulphonic acid; 3-hydroxy-7-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)naphthalene-1-sulfonic acid |