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Pigment Red 185

Pigment Red 185 / CAS : 51920-12-8

Appearance Magenta powder UN 0.0
HS - DG Class 0.0
Synonyms 3-Hydroxy-4-[[2-Methoxy-5-Methyl-4-(Methylsulfamoyl)Phenyl]Diazenyl]-N-(2-oxo-1,3-Dihydrobenzimidazol-5-yl)Naphthalene-2-Carboxamide; N-(2,3-Dihydro-2-oxo-1H-Benzimidazol-5-yl)-3-Hydroxy-4-[[2-Methoxy-5-Methyl-4-[(Methylamino)Sulphonyl]Phenyl]azo]Naphthalene-2-Carboxamide; Pigment Red HF4C
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Properties

Summary

Formula
C27H24N6O6S
Molecular Mass
560.58100
Exact Mass
560.14800
PSA
186.48000
Logp
6.15250
IUPAC
3-hydroxy-4-[[2-methoxy-5-methyl-4-(methylsulfamoyl)phenyl]diazenyl]-N-(2-oxo-1,3-dihydrobenzimidazol-5-yl)naphthalene-2-carboxamide
SMILES
CC1=CC(=C(C=C1S(=O)(=O)NC)OC)N=NC2=C(C(=CC3=CC=CC=C32)C(=O)NC4=CC5=C(C=C4)NC(=O)N5)O

Attribute classification

Matter Classification
organic
Category
Dyestuffs and Pigments > Pigment Red

Chemical and Physical Properties

Melting Point
335-345ºC
Density
1.3-1.4
Appearance
Magenta powder
Acidity and Basicity
acidness

Export information

Export Rebate
13%
UN No.
0.0
DG-Class
0.0

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