5280-68-2

Basic information

• Product Name: Pigment Red 146
• Synonyms: PR-146;PIGMENT RED 146;n-(4-chloro-2,5-dimethoxyphenyl)-3-hydroxy-4-[[2-methoxy-5-[(phenylamino)carbonyl]phenyl]azo]naphthalene-2-carboxamide;2-NAPHTHALENE-CARBOXAMIDE,3-HYDROXY-4-((2-METHOXY-5-((PHENYLAMINO)CARBONYL)PHENYL)AZO)-N-4-(CHLORO-2,5-DIMETHOXYLPHENYL)-;PR146 NAPHTHOL CARMINE FBB;Pigment Carmine Red;Pigment Permanent Red FBB;2-Naphthalenecarboxamide, N-(4-chloro-2,5-dimethoxyphenyl)-3-hydroxy-4-2-methoxy-5-(phenylamino)carbonylphenylazo-
• CAS NO: 5280-68-2
• Molecular Formula: C33H27ClN4O6
• Molecular Weight: 611.04
• EINECS: 226-103-2
• Product Categories: Organics
• Mol File: 5280-68-2.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 719.5 °C at 760 mmHg
• Flash Point: 389 °C
• Appearance: red
• Density: 1.337 g/cm³
• Vapor Pressure: 2.15E-21mmHg at 25°C
• Refractive Index: 1.641
• Storage Temp.: 4°C, Inert atmosphere
• PKA: 10.06±0.70(Predicted)
• CAS DataBase Reference: Pigment Red 146(CAS DataBase Reference)
• NIST Chemistry Reference: Pigment Red 146(5280-68-2)
• EPA Substance Registry System: Pigment Red 146(5280-68-2)

Safety Data

• Hazardous Substances Data: 5280-68-2(Hazardous Substances Data)

Usage

Uses

Pigment Red 146 can be used for aqueous inkjet set and inkjet printing.

Properties and Applications

TEST ITEMS SPECIFICATION APPEARANCE RED POWDER SHADE BLUISH HEAT RESISTANCE 180 °C min LIGHT FASTNESS 6-7 ACID RESISTANCE 4 ALKALI RESISTANCE 5 FASTNESS TO BLEEDING 5 OIL ABSORPTION 40-50% SPECIFIC SURFACE 30 m 2 /g DENSITY 1.50 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 %

TEST ITEMS

SPECIFICATION

APPEARANCE

RED POWDER

SHADE

BLUISH

HEAT RESISTANCE

180 °C min

LIGHT FASTNESS

6-7

ACID RESISTANCE

4

ALKALI RESISTANCE

5

FASTNESS TO BLEEDING

5

OIL ABSORPTION

40-50%

DENSITY

1.50 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 %

InChI:InChI=1/C33H27ClN4O6/c1-42-27-14-13-20(32(40)35-21-10-5-4-6-11-21)16-26(27)37-38-30-22-12-8-7-9-19(22)15-23(31(30)39)33(41)36-25-18-28(43-2)24(34)17-29(25)44-3/h4-18,39H,1-3H3,(H,35,40)(H,36,41)

Upstream product

• 4273-92-1 naphthol-AS-LC 
• 50516-77-3 N-(3-amino-4-methoxyphenyl)-benzamide 
• 55805-64-6 C₁₄H₁₂N₃O₂⁽¹⁺⁾*Cl^(1-) 

Relevant articles and documents

Production process and system for insoluble azo pigments

An insoluble azo pigment is produced by ejecting a diazo solution and a grounding solution continuously into an ejector such that within the ejector, the diazo solution and grounding solution are mixed with each other and are subjected to a coupling reaction. A production system for the insoluble azo pigment includes the following units (1) to (4): (1) a first feed tank (2) for a first fluid selected from the diazo solution or grounding solution, a first flow path (a) for feeding the first fluid to nozzles of an ejector (1), and a pump (d) for feeding the first fluid through the first flow path; (2) the ejector (1) provided with the nozzles, a suction chamber, a diffuser, and a temperature control device (g); (3) a second feed tank (3) for a second fluid, a second flow path (b) for guiding the second fluid into the suction chamber, and a flow control device (e) for controlling a flow rate of the second fluid through the second flowpath (b); and (4) a heat treatment tank (5) for subjecting to heat treatment a suspension of the insoluble azo pigment formed by a reaction between the first fluid and the second fluid, and a third flow path (a′) for guiding the suspension from the diffuser to the heat treatment tank.