Pigment Red 3

Brand	Fineland Chem
Color Index	Pigment Red 3
Color Index No	12120
CAS No	2425-85-6
EC No	219-372-2
Chemical Group	Mono Azo
Chemical Formula	C₁₇H₁₃N₃O₃

What is Pigment Red 3

Pigment Red 3 (C.I. 12120) is an organic azo pigment belonging to the β-naphthol pigment family. It is characterized by a bright yellowish-red shade and has historically been used in coatings, printing inks, and certain plastic coloration applications.

Product Technical Data and Typical Performance Values

PR3 – DuraPaint®6503H ⬇️TDS

This red pigment exhibits a yellowish shade, high opacity, and typical weather resistance.

Physical Properties

Test Item	Specification
Density (g/cm3 )	1.34-1.52
Specific Surface Area(m2/g)	8-25
Oil Absorption(g/100g)	35-50
PH Value	5-8
Moisture Content (%)	≤2
Total impurities(ppm)	≤600

Fastness Properties

Heat Resistance (℃)	160	Alkali Resistance (1-5)	5
Light Resistance (Full Shade, 1-8)	5-6	Migration Resistance(1-5)	4
Light (Reduced tinting, 1-8)	5	Ethyl Acetate (1-5)	3
Weather Resistance (1-5)	3-4	Ethanol (1-5)	3
Acid Resistance (1-5)	5	MEK (1-5)	2-3

Typical Applications

Pigment Red 3 is used in several traditional coloration applications where a vivid red shade is required.

Typical uses include:

Industrial and decorative coatings
Applied in general industrial paints and architectural coatings.
Printing inks
Used in packaging inks, publication inks, and other conventional ink systems.
Plastic coloration
Suitable for some general-purpose plastics processed at moderate temperatures.
Rubber and textile printing
Used in rubber products and pigment printing formulations.

Key Performance Properties Related to Applications

The functional performance of Pigment Red 3 is determined by its chemical structure and pigment particle characteristics.

Key performance aspects include:

Color shade
A bright yellowish red tone with noticeable chroma.
Tinting strength
Moderate tinting strength suitable for general coloration.
Dispersion properties
Can be dispersed in common coating, ink, and plastic systems using standard dispersion techniques.
Heat stability
Moderate resistance to processing temperatures compared with high-performance organic pigments.
Solvent resistance
Generally compatible with typical solvents used in coatings and ink formulations.

Advantages

Production and Supply Chain Advantage：Known as Toluidine Red, it is a pigment variety with large output. Its supply chain is more stable, which can meet large-scale demand.
Appearance Differentiation and Adaptation Advantage：It can provide different appearance formulations according to needs—those with large particle size show blue-tinged red, and those with small particle size show yellow-tinged red, flexibly matching diverse color requirements.
Basic Fastness Performance Advantage：Its light fastness reaches Grade 7, with good basic color fastness performance, which can ensure color stability in conventional application scenarios.
Core Application Accurate Adaptation Advantage：It is mainly suitable for the fields of air-drying paints and rigid PVC, with strong application pertinence, which can better exert pigment performance. It is rarely used in printing inks, avoiding performance waste in non-adaptable scenarios.
Abundant Market Choice Advantage：A wide range of commercial grades have been launched in the market. They can accurately match the purchasing preferences of different customers, be highly adaptable to diverse application scenarios, and fully meet the performance requirements in various segmented fields, providing customers with flexible product selection options.

Typical Limitations

Pigment Red 3 may present limitations in certain applications that require higher durability.

Common limitations include:

Limited lightfastness for outdoor or long-term exposure
Moderate thermal stability compared with modern high-performance pigments
Possible bleeding or migration in some plastic systems
Not typically selected for high-durability coatings or engineering plastics

Buyer Guidance

When evaluating Pigment Red 3 for industrial applications, the following factors are commonly considered:

Processing temperature of coatings, inks, or plastics
Lightfastness requirements for indoor or outdoor applications
Compatibility with resin or binder systems
Required dispersion and tinting strength

Applications requiring enhanced weather resistance or higher thermal stability may evaluate alternative pigment classes.

Synonyms

PR3	Pigment Scarlet	Hansa Red B	Flexiverse Red 3
Anthraquinone-1,2-diol	Alizarin Red S	Kenalake Scarlet RB	Monolite Scarlet RN
Basoflex Red 3750	adctoluidineredb	DCC 2254 Toluidine Red	Aurasperse ⅡW-3073
Covanor Red W3603	C.I. Pigment Red 3	C.P.Toluidine Toner A-2989	C.P.Toluidine Toner A-2990
C.I.PigmentRed3(12120)	1,2-Dihydroxyanthraquinone	C.P.Toluidine Toner Dark RS-3340	1,2-Dihydroxy-9,10-anthraquinone
((4-Methyl-2-nitrophenyl)azo)-2-naphthol	1-((2-nitro-4-methylphenyl)azo)-2-naphthol

Manufacturer and Supplier Information

Pigment Red 3 is produced by pigment manufacturers globally and is typically supplied as a powdered organic pigment for use in coatings, inks, plastics, rubber, and related industries.

Different commercial grades may vary in particle size distribution, surface treatment, and dispersion properties depending on the intended application.

Package and Delivery

● 25KG Kraft Bag, 400kg/500kg Carton Box

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

FAQ

1.What color shade does Pigment Red 3 produce?
Pigment Red 3 typically produces a bright yellowish-red shade.

2.Is Pigment Red 3 an organic pigment?
Yes. It belongs to the organic azo pigment class, specifically the β-naphthol pigment group.

3.Can Pigment Red 3 be used in printing inks?
Yes. It has historically been used in various conventional printing ink formulations.

4.Is Pigment Red 3 suitable for outdoor coatings?
It is generally used in applications where moderate durability is acceptable; for high weather resistance, other pigment types may be considered.