Pigment Red 37

4-[[2-methoxy-4-[3-methoxy-4-[[3-methyl-1-(4-methylphenyl)-5-oxo-4H-pyrazol-4-yl]diazenyl]phenyl]phenyl]diazenyl]-5-methyl-2-(4-methylphenyl)-4H-pyrazol-3-one

Also Known As: Pigment Red 37|Polymo Scarlet GR|C.I.Pigment Red 37|VULCAN FAST RED G|EINECS 229-986-2|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)|C.I.21205|2,3,4,6,2',3',4',6'-Octamethyl-biphenyl|4-[[2-methoxy-4-[3-methoxy-4-[[3-methyl-1-(4-methylphenyl)-5-oxo-4H-pyrazol-4-yl]diazenyl]phenyl]phenyl]diazenyl]-5-methyl-2-(4-methylphenyl)-4H-pyrazol-3-one|3H-Pyrazol-3-one, 4,4'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(2,4-dihydro-5-methyl-2-(4-methylphenyl)-|3H-Pyrazol-3-one, 4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-(4-methylphenyl)-|3H-Pyrazol-3-one, 4,4'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(2,4-dihydro-5-methyl-2-(4-methylphenyl)-|3H-Pyrazol-3-one, 4,4'-[(3,3'-dimethoxy[1,1'- biphenyl]-4,4'-diyl)bis(azo)]bis[2,4-dihydro-5-methyl -2-(4-methylphenyl)-|3H-Pyrazol-3-one, 4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[2,4-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]|4,4 -[(3,3 -Dimethoxy-1,1 -biphenyl-4,4 -diyl)bis(azo)]bis[2,4-dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one]|4,4'-[(3,3'-Dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(diazene-2,1-diyl)]bis[5-methyl-2-(4-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one]|4-[2-(3,3'-dimethoxy-4'-{2-[3-methyl-1-(4-methylphenyl)-5-oxo-4,5-dihydro-1H-pyrazol-4-yl]diazen-1-yl}-[1,1'-biphenyl]-4-yl)diazen-1-yl]-3-methyl-1-(4-methylphenyl)-4,5-dihydro-1H-pyrazol-5-one|4-[2-methoxy-4-[3-methoxy-4-[[3-methyl-5-oxo-1-(p-tolyl)-4H-pyrazol-4-yl]azo]phenyl]phenyl]azo-5-methyl-2-(p-tolyl)-4H-pyrazol-3-one

Molecular Formula	C36H34N8O4
Molecular Weight	642.2703 g/mol
LogP	7.74
Topological Polar Surface Area	133.24 Ų
Hydrogen Bond Donors	0
Hydrogen Bond Acceptors	10
Rotatable Bonds	9
Exact Mass	642.2703
Heavy Atoms	48
Complexity	1856.6

Chemical Identifiers

CAS Number	6883-91-6
SMILES	CC1=CC=C(C=C1)N2C(=O)C(C(=N2)C)N=NC3=C(C=C(C=C3)C4=CC(=C(C=C4)N=NC5C(=NN(C5=O)C6=CC=C(C=C6)C)C)OC)OC