61847-48-1

Basic information

• Product Name: Pigment Red 188
• Synonyms: methyl 4-[[(2,5-dichlorophenyl)amino]carbonyl]-2-[[2-hydroxy-3-[[(2-methoxyphenyl)amino]carbonyl]-1-naphthyl]azo]benzoate;Benzoic acid, 4-(2,5-dichlorophenyl)aminocarbonyl-2-2-hydroxy-3-(2-methoxyphenyl)aminocarbonyl-1-naphthalenylazo-, methyl ester;Pigment Red 188;Red HF3S;CI Pigment Red 188;4-[[(2,5-Dichlorophenyl)amino]carbonyl]-2-[[2-hydroxy-3-[[(2-methoxyphenyl)amino]carbonyl]-1-naphtyl]azo]benzoic acid methyl ester;C.I.12467;MERWBGHMSXDWBM-YMZYAJTMSA-N
• CAS NO: 61847-48-1
• Molecular Formula: C33H24Cl2N4O6
• Molecular Weight: 643.47286
• EINECS: 263-272-1
• Product Categories: Organics
• Mol File: 61847-48-1.mol
• Article Data: 0

Chemical Properties

• Melting Point: 320℃
• Boiling Point: 734.8 °C at 760 mmHg
• Flash Point: 398.2 °C
• Appearance: /
• Density: 1.4 g/cm³
• Refractive Index: 1.66
• PKA: 11.39±0.70(Predicted)
• CAS DataBase Reference: Pigment Red 188(CAS DataBase Reference)
• NIST Chemistry Reference: Pigment Red 188(61847-48-1)
• EPA Substance Registry System: Pigment Red 188(61847-48-1)

Safety Data

• Hazardous Substances Data: 61847-48-1(Hazardous Substances Data)

Usage

Description

Pigment Red 188 is a red powder with a yellowish shade, characterized by its heat resistance of at least 300°C, light fastness rating of 7-8, and good resistance to acids and alkalis with a rating of 5. It has a fastness to bleeding rating of 5, an oil absorption rate of 40-50%, a specific surface area of 27 m2/g, a density of 1.60 g/cm3, and a maximum residue on 80 mesh of 5.0%. The pigment has a maximum water solubility of 1.0% and a tinging strength of 100-105%.

Uses

Used in Paint Industry:
Pigment Red 188 is used as a colorant for its excellent heat resistance, light fastness, and resistance to acids and alkalis, making it suitable for high-quality paint formulations.
Used in Plastics Industry:
The pigment is utilized as an additive in the plastics industry due to its stability and ability to provide a consistent yellowish red shade, enhancing the appearance and quality of plastic products.
Used in Printing Industry:
Pigment Red 188 serves as a high-performance pigment in the printing industry, offering good solubility and tinging strength, which contribute to the vibrancy and durability of printed materials.
Used in Coatings Industry:
The pigment is employed in the coatings industry for its ability to provide a long-lasting and attractive yellowish red color, along with its resistance to various environmental factors, ensuring the coatings' durability and appearance.

TEST ITEMS

SPECIFICATION

LIGHT FASTNESS

7-8

ACID RESISTANCE

5

ALKALI RESISTANCE

5

FASTNESS TO BLEEDING

5

OIL ABSORPTION

40-50%

SPECIFIC SURFACE

27 m 2 /g

DENSITY

1.60 g/cm 3

RESIDUE ON 80 MESH

5.0% max

VOLATITE 105 °C

1.0% max

InChI:InChI=1/C33H24Cl2N4O6/c1-44-28-10-6-5-9-25(28)36-32(42)23-15-18-7-3-4-8-21(18)29(30(23)40)39-38-26-16-19(11-13-22(26)33(43)45-2)31(41)37-27-17-20(34)12-14-24(27)35/h3-17,38H,1-2H3,(H,36,42)(H,37,41)/b39-29-