C.I.21205

Vulcan Fast Red G

Polymo Scarlet GR

C.I. Pigment Red 37

3H-Pyrazol-3-one, 4,4-(3,3-dimethoxy1,1-biphenyl-4,4-diyl)bis(azo)bis2,4-dihydro-5-methyl-2-(4-methylphenyl)-

4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-(p-tolyl)-3H-pyrazol-3-one]