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51920-12-8

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51920-12-8 Structure

51920-12-8 Structure
IdentificationBack Directory
[Name]

Pigment Red HF4C
[CAS]

51920-12-8
[Synonyms]

pigment red 185
pigment red hf4c
Einecs 257-515-0
Permanent Carmine HF-4C
YKGGTUUWVUHZIL-ULIFNZDWSA-N
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)SULPHONYLPHENYLAZONAPHTHALENE-2-CARBOXAMIDE
3-Dihydro-2-oxo-1H-benziMidazol-5-yl)-3-hydroxy-4-[[2-Methoxy-5-Methyl-4-[(MethylaMino)sulphonyl]phenyl]azo]naphthalene-2-carboxaMide
N-[(2,3-Dihydro-2-oxo-1H-benzimidazol)-5-yl]-3-hydroxy-4-[[2-methoxy-5-methyl-4-[(methylamino)sulfonyl]phenyl]azo]-2-naphthalenecarboxamide
(4Z)-4-[[2-methoxy-5-methyl-4-(methylsulfamoyl)phenyl]hydrazinylidene]-3-oxo-N-(2-oxo-1,3-dihydrobenzimidazol-5-yl)naphthalene-2-carboxamide
2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-(2-(2-methoxy-5-methyl-4-((methylamino)sulfonyl)phenyl)diazenyl)-
[EINECS(EC#)]

257-515-0
[Molecular Formula]

C27H24N6O6S
[MOL File]

51920-12-8.mol
[Molecular Weight]

560.58
Chemical PropertiesBack Directory
[Melting point ]

335-345 ºC
[density ]

1.3-1.4
[pka]

10.63±0.50(Predicted)
[Water Solubility ]

3.4μg/L at 26℃
[LogP]

0.8 at 25℃
[EPA Substance Registry System]

2-Naphthalenecarboxamide, N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-4-[[2-methoxy-5-methyl-4-[(methylamino)sulfonyl]phenyl]azo]- (51920-12-8)
Safety DataBack Directory
[TSCA ]

TSCA listed
[REACH Registrations]

Active
Hazard InformationBack Directory
[Uses]

Pigment Red 185 is an organic pigment used in artist’s paints throughout the 20th and 21st centuries.
[Flammability and Explosibility]

Notclassified
[Properties and Applications]

TEST ITEMS

SPECIFICATION

APPEARANCE

RED POWDER

HEAT RESISTANCE

300 °C min

LIGHT FASTNESS

7-8

ACID RESISTANCE

5

ALKALI RESISTANCE

5

FASTNESS TO BLEEDING

5

OIL ABSORPTION

40-50%

SPECIFIC SURFACE

26m 2 /g

DENSITY

1.40 g/cm 3

RESIDUE ON 80 MESH

5.0% max

WATER SOLUBLE

1.0% max

VOLATITE 105 °C

1.0% max

TINTING STRENGTH

100-105 %

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