Synonyms: C.I.Solvent Red 100 (8CI); Chromate(1-), bis[2,4-dihydro-4-[[2-(hydroxy-kO)-4(or 5)-nitrophenyl]azo-kN1]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)-kO3]-, hydrogen (9CI);Chromate(1-), bis[2,4-dihydro-4-[[2-hydroxy-4(or 5)-nitrophenyl]azo]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)]-,hydrogen; 3H-Pyrazol-3-one, 2,4-dihydro-4-[[2-hydroxy-4(or5)-nitrophenyl]azo]-5-methyl-2-phenyl-, chromium complex; C.I. 12716; C.I.Solvent Red 142; Solcorom Red PGL; Solvent Red 100; Solvent Red 142; Zapon FastRed GE