Pigment Red 31

Brand	Fineland Chem
Color Index	Pigment Red 31
Color Index No	12360
CAS No	6448-96-0
EC No	229-246-9
Chemical Group	Mono Azo
Chemical Formula	C₃₁H₂₃N₅O₆

Introduction

Pigment Red 31 is a synthetic monoazo pigment belonging to the β-naphthol pigment subclass. It produces a medium red shade, often described as slightly yellower and less bluish than Pigment Red 22. Valued primarily for its color strength and cost-effectiveness in printing inks, it offers moderate application properties. Its lightfastness and weather resistance are generally limited compared to high-performance pigments. Common historical uses include offset, packaging, and newspaper inks, as well as lower-grade paints and plastics where top durability is not required.

Physical Properties

Test Item	Specification
Density (g/cm3 )	1.3-1.47
Specific Surface Area(m2/g)	–
Oil Absorption(g/100g)	35-52
PH Value	6-8
Bulk Density (lb/gal)	–
Total impurities(ppm)	≤600

Fastness Properties (5=excellent, 1=poor) | Light Fastness (8=excellent, 1=poor)

Heat Resistance (℃)	180-200	Alkali Resistance (1-5)	5
Light Resistance (Full Shade, 1-8)	6-7	Migration Resistance(1-5)	4-5
Light (Reduced tinting, 1-8)	5-6	Ethyl Acetate (1-5)	4
Weather Resistance (1-5)	4	Ethanol (1-5)	4
Acid Resistance (1-5)	5	MEK (1-5)	3

Application

Printing Ink: Discover high-performance ink pigments for various printing technologies including water-based, solvent-based, offset, inkjet, UV curing, and decorative applications. More Details

Paint and Coating: Explore a wide range of coating pigments tailored for paints, oils, automotive finishes, industrial applications, concrete, cement, and ceramics. More Details

Plastic: Browse a comprehensive selection of plastic pigments designed for PE, PVC, EVA, rubber, and a variety of engineering plastics. More Details

Special Applications: Find specialized pigments offering unique effects and functionalities for textiles, resins, glazes, metallic finishes, fluorescence, and anti-corrosion needs. More Details

Application

Printing Ink: Discover high-performance ink pigments for various printing technologies including water-based, solvent-based, offset, inkjet, UV curing, and decorative applications. More Details

Paint and Coating: Explore a wide range of coating pigments tailored for paints, oils, automotive finishes, industrial applications, concrete, cement, and ceramics. More Details

Plastic: Browse a comprehensive selection of plastic pigments designed for PE, PVC, EVA, rubber, and a variety of engineering plastics. More Details

Special Applications: Find specialized pigments offering unique effects and functionalities for textiles, resins, glazes, metallic finishes, fluorescence, and anti-corrosion needs. More Details

Package and Delivery

● 25KG drum, 1000KG Carton Box.

● Lead Time: Normally around 15 days after signed contract.

Advantages

What do you think of the market prospects of pigment Red 31?
According to market trends and customer feedback, pigment Red 31 has broad application prospects in industries such as coatings, inks and plastics. As a supplier of organic raw materials with decades of history, we will continue to pay attention to changes in market demand to optimize products and services.

How about after-sales service?
FineLand Chem provides comprehensive after-sales service, including technical support, quality assurance and product use training. If you have any questions or feedback, we will actively respond and seek solutions.

Can you provide samples of pigment Red 31?
Yes, FineLand Chem can provide samples of pigment Red 31 for customers to test and evaluate. Samples will be delivered and arranged according to your needs.

Synonyms

Pigment Red 31
C.I.12360
C.I. Pigment Red 31
(4Z)-4-[[2-methoxy-5-(phenylcarbamoyl)phenyl]hydrazinylidene]-N-(3-nitrophenyl)-3-oxonaphthalene-2-carboxamide;3-hydroxy-4-[[2-methoxy-5-[(phenylamino)carbonyl]phenyl]azo]-n-(3-nitrophenyl)Chemicalbook-2-naphthalenecarboxamide
3-HYDROXY-4-2-METHOXY-5-(PHENYLAMINO)CARBONYLPHENYLAZO-N-(3-NITROPHENYL)-2-NAPHTHALENECARBOXAMIDE;4-[[5-(anilino)carbonyl-2-methoxyphenyl]azo]-3-hydroxy-n-(3-nitrophenyl)naphthalene-2-carboxamide
RedViolet