| Identification | More | [Name]
Pigment Red 23 | [CAS]
6471-49-4 | [Synonyms]
3-Hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(3-nitrophenyl)naphthalene-2-carboxamide
C.I. 12355
pigment red 23
NAPTHOL RED BLUE SHADE
Irgalite Red
2-Naphthalenecarboxamide, 3-hydroxy-4-(2-methoxy-5-nitrophenyl)azo-N-(3-nitrophenyl)-
2-Naphthalenecarboxamide, 4-5-(aminocarbonyl)-2-methoxyphenylazo-3-hydroxy-N-phenyl-
CIPIGMENT23
1-(2-Methoxy-5-nitrophenylazo)-2-hydroxy-3-(3-nitrophenylcarbamoyl)naphthalene
3-Hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-3'-nitro-2-naphthanilide
3-hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(3-nitrophenyl)-2-Naphthalenecarboxamide
c.i. pigment red 157
4-[[5-(aminocarbonyl)-2-methoxyphenyl]azo]-3-hydroxy-N-phenyl-2-Naphthalenecarboxamide
Pigment red 245 (C.I. 12317)
Pigment red 23 (C.I. 12355)
Fast Carmine RBS
Fast Pink B
C.I. Pigment Red 245
6316 Fast Rose Red
6368 Permanent Pink | [EINECS(EC#)]
229-313-2 | [Molecular Formula]
C25H20N4O4 | [MDL Number]
MFCD00071991 | [Molecular Weight]
440.451 | [MOL File]
6471-49-4.mol |
| Chemical Properties | Back Directory | [Appearance]
red powder | [Melting point ]
330-340°C | [Boiling point ]
583.02°C (rough estimate) | [density ]
1.4576 (rough estimate) | [vapor pressure ]
0Pa at 25℃ | [refractive index ]
1.7500 (estimate) | [storage temp. ]
Amber Vial, -20°C Freezer | [solubility ]
Basic DMSO (Slightly), DMSO (Very Slightly), Methanol (Slightly) | [form ]
Solid | [pka]
11.07±0.70(Predicted) | [color ]
Dark Red | [Stability:]
Stable, but light sensitive. Incompatible with strong oxidizing agents. | [Water Solubility ]
<0.1 g/100 mL at 22 ºC | [LogP]
5.04 at 25℃ | [CAS DataBase Reference]
6471-49-4(CAS DataBase Reference) | [EPA Substance Registry System]
6471-49-4(EPA Substance) |
| Hazard Information | Back Directory | [General Description]
Red to bluish red powder. | [Reactivity Profile]
C.I. PIGMENT RED 23(6471-49-4) is sensitive to light and may be sensitive to heat. This compound is incompatible with strong oxidizing agents. . C.I. PIGMENT RED 23(6471-49-4) is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. | [Air & Water Reactions]
Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water. | [Fire Hazard]
Flash point data for this chemical are not available. C.I. PIGMENT RED 23 is probably combustible. | [Chemical Properties]
red powder | [Flammability and Explosibility]
Notclassified | [Properties and Applications]
|
TEST ITEMS
|
SPECIFICATION
|
|
APPEARANCE
|
RED POWDER
|
|
SHADE
|
YELLOWISH
|
|
HEAT RESISTANCE
|
140 °C min
|
|
LIGHT FASTNESS
|
6~7
|
|
ACID RESISTANCE
|
5
|
|
ALKALI RESISTANCE
|
4
|
|
FASTNESS TO BLEEDING
|
4
|
|
OIL ABSORPTION
|
40-50%
|
|
SPECIFIC SURFACE
|
28 m
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 %
|
|
|
| Company Name: |
AFINE CHEMICALS LIMITED
|
| Telephone: |
+86-571-85134551 +86-18958018566 |
| Website: |
www.afinechem.com/index.html |
| Company Name: |
Mainchem Co., Ltd.
|
| Telephone: |
+86-0592-6210733 |
| Website: |
https://www.mainchem.com |
| Company Name: |
Wuhan Fortuna Chemical Co.,Ltd
|
| Telephone: |
+86-2759207851; +86-18007136271 |
| Website: |
https://www.chemicalbook.com/manufacturer/Wuhan%20Fortuna%20chemical/ |
|