Synonyms:
pigment red 38 ; diethyl 4,4'-(3,3'-dichloro1,1'-biphenyl-4,4'-diyl)bis(azo)bis4,5-dihydro-5-oxo-1-phenyl-1h-pyrazole-3-carboxylate ; pigment red 38 (c.i. 21120) ; 1h-pyrazole-3-carboxylic acid, 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bi ; diethyl 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo-1-phenyl-1h-pyrazole-3-carboxylate] ; c.i. 21120 ; 5-dihydro-5-oxo-1-phenyl-s(azo)]bis[ diethyl ester ; pyrazolone red b toner ; c.i. pigment red 38 ; piper red
