Pigment Red 144 CAS #5280-78-4

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Pigment Red 144 CAS #5280-78-4

Pigment Red 144, with the molecular formula C_{40} H_{23} Cl_{5} N_{6} O_{4}. It is a bluish red powder with the following properties and characteristics:
Physical and chemical properties: refractive index 1.724, density 1.53.
Color: bluish red.
Lightfastness: up to level 7.
Migration resistance: level 4-5.
Thermal stability: 5 at 180°C (356°F)/2 minutes.
Pigment Red 144 is mainly used for plastic and ink coloring, with high tinting strength. It performs well in polystyrene, polyurethane coloring and polypropylene pulp coloring, and can withstand heat up to 300°C in HDPE. Its high specific surface area formulation can be used for high-grade inks, varnish resistance and sterilization treatment, and can also be used for metal decorative inks and architectural decorative coatings.

Category Dyestuffs And Pigments Tag Dyestuffs And Pigments

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Pigment Red 144 CAS #5280-78-4

Product Name:	Pigment Red 144
Synonyms:	Pigment Red 144;N,N’-(2-chloro-1,4-phenylene)bis[4-[(2,5-dichlorophenyl)azo]-3-hydroxynaphthalene-2-carboxamide];Cromophtal Red Br (CGY,SNA);Large Molecular Red BR;2-Naphthalenecarboxamide, N,N-(2-chloro-1,4-phenylene)bis4-(2,5-dichlorophenyl)azo-3-hydroxy-;Pigment red 144 (C.I. 20735);Fast Red BR;C.I. 20735
CAS:	5280-78-4
MF:	C40H23Cl5N6O4
MW:	828.91
EINECS:	226-106-9
Product Categories:	Organics;Dyes and Pigments
Mol File:	5280-78-4.mol

Pigment Red 144 Chemical Properties

Boiling point	902.0±65.0 °C(Predicted)
density	1.53
pka	10.37±0.70(Predicted)
Water Solubility	11.2μg/L at 26℃
LogP	0.29 at 25℃
EPA Substance Registry System	2-Naphthalenecarboxamide, N,N’-(2-chloro-1,4-phenylene)bis[4-[(2,5-dichlorophenyl)azo]-3-hydroxy- (5280-78-4)

Safety Information

MSDS Information

Pigment Red 144 Usage And Synthesis

Chemical Properties	Red powder, bright color, high tinting strength, excellent light fastness, heat resistance can be stable to 180 ℃, excellent solvent resistance, good acid resistance (5%HCl) and alkali resistance (5%Na2CO3) (non-fading) .
Uses	Pigment Red 144 has excellent performance and is suitable for the coloring of paints, inks, plastics and rubber products, and can also be used for the coloring of synthetic fiber puree.
Flammability and Explosibility	Not classified
Synthesis	Pigment Red 144 can be prepared by coupling 2,5-dichloroaniline diazonium salt with 2,3-acid, acidifying with hydrochloric acid, acyl chloride with thionyl chloride, and then condensing with o-chloro-p-phenylenediamine.

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