Benzenesulfonicacid,5-chloro-3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxy-,monosodium salt (9CI);C.I. Mordant Red 19 (7CI);C.I. Mordant Red 19,monosodium salt (8CI);Acid Chrome Red 5G;Acid Monochrome Red 4G;AcidMonochrome Red 4Zh;Anthranol Chrome Red GL;C.I. 18735;Chrome Fast Red 2G;Chrome Fast Red GW;Chrome Red 3G;Diamond Chrome Red 5G;Durochrome Red 5G;Eriochromal Red 4G;Eriochromal Red 4GC;Eriochrome Red 4G;Java Chrome Red5GD;Java Unichrome Red 5G;Java Unichrome Red G;Magracrom Red 5G;MetachromeRed 5G;Metomega Chrome Red ME;Monochrome Red 4Zh;Monochrome Red 5G;Monochrome Red ME;Mordant Red 19;NSC 326195;Omega Chrome Red 2GLL;OmegaChrome Red ME;Salicine Chrome Red G;Shimazaki Chrome Brilliant Red G;Solochromate Fast Red;Solochromate Fast Red 3G;Solochrome Fast Red;Superchrome Red G;Synchromate Red 2G;Benzenesulfonic acid, 5-chloro-3-((4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo)-2-hydroxy-, monosodium salt (9CI);benzenesulfonic acid, 5-chloro-3-[(E)-2-(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)diazenyl]-2-hydroxy-, sodium salt (1:1);