Synonyms: Chromate(3-),bis[5-chloro-3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxybenzenesulfonato(3-)]-,disodium hydrogen; Chromate(3-), bis[5-chloro-3-[[4,5-dihydro-3-methyl-5-(oxo-kO)-1-phenyl-1H-pyrazol-4-yl]azo-kN1]-2-(hydroxy-kO)benzenesulfonato(3-)]-,disodium hydrogen (9CI); Benzenesulfonic acid,5-chloro-3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxy-,chromium complex; Acid Red 180; C-WR Orange 8; C.I. 18736; C.I. Acid Red 180; ChromeIntra Red R; Efdolan Red RN; Erganil Red RC; Palatine Fast Red RN; Pilate FastRed RN; Stenamina Red R; Tertroxane Red R; Ultralan Red R