Basic information Safety Supplier Related

Pigment Red 23

Basic information Safety Supplier Related

Pigment Red 23 Basic information

Product Name:
Pigment Red 23
Synonyms:
  • 3-Hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(3-nitrophenyl)naphthalene-2-carboxamide
  • 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-
  • pigment red 23
  • C.I. 12355
  • 2-Naphthalenecarboxamide, 3-hydroxy-4-[2-(2-methoxy-5-n itrophenyl)diazenyl]-N-(3-nitrophenyl)-
CAS:
6471-49-4
MF:
C24H17N5O7
MW:
487.42
EINECS:
229-313-2
Product Categories:
  • Organics
  • Dyes and Pigments
Mol File:
6471-49-4.mol
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Pigment Red 23 Chemical Properties

Melting point:
330-340°C
Boiling point:
583.02°C (rough estimate)
Density 
1.4576 (rough estimate)
refractive index 
1.7500 (estimate)
pka
11.07±0.70(Predicted)
Water Solubility 
<0.1 g/100 mL at 22 ºC
Stability:
Stable, but light sensitive. Incompatible with strong oxidizing agents.
CAS DataBase Reference
6471-49-4(CAS DataBase Reference)
EPA Substance Registry System
C.I. Pigment Red 23 (6471-49-4)
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Safety Information

Hazardous Substances Data
6471-49-4(Hazardous Substances Data)

MSDS

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Pigment Red 23 Usage And Synthesis

Chemical Properties

red powder

General Description

Red to bluish red powder.

Air & Water Reactions

Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.

Reactivity Profile

Pigment Red 23 is sensitive to light and may be sensitive to heat. Pigment Red 23 is incompatible with strong oxidizing agents. . Pigment Red 23 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.

Fire Hazard

Flash point data for Pigment Red 23 are not available. Pigment Red 23 is probably combustible.

Pigment Red 23Supplier

Winchem Industrial Co. Ltd
Tel
0574-83851061;0574-87083208
Email
info@win-chemical.com;info@win-chemical.com
Shanghai JONLN Reagent Co., Ltd.
Tel
400-0066400;021-60496031
Email
422131432@qq.com;422131432@qq.com
Hangzhou J&H Chemical Co., Ltd.
Tel
0571-87396432-
Email
sales@jhechem.com;
Shanghai Orgchem Co.,Ltd.
Tel
+86-21-5877 1921
Email
info@chemofchina.com
Hefei TNJ Chemical Industry Co.,Ltd.
Tel
0551-65418671
Email
sales@tnjchem.com