Description

Pigment Red 151 is a high-performance, synthetic organic pigment belonging to the Naphthol AS series. This compound is valued for its excellent color strength, good lightfastness, and strong solvent resistance, making it a reliable choice for demanding coloration applications. It is primarily used by manufacturers in the plastics, coatings, and printing ink industries seeking vibrant, durable red shades.

Application

• Plastics Coloring: For coloring polyolefins (PP, PE), PVC, engineering plastics, and synthetic fibers, offering good dispersion and heat stability.
• Industrial Coatings: Imparts durable red hues in automotive finishes, industrial maintenance paints, and coil coatings.
• Printing Inks: Used in solvent-based and water-based inks for packaging, publications, and decorative printing.
• Masterbatch Production: A key component in the manufacture of color concentrates and compounds for the plastics industry.
• Architectural Paints: Suitable for interior and exterior emulsion paints where color consistency is required.
• Specialty Applications: Can be used in colored pencils, artists' colors, and other specialty industrial products.

Basic Information

Product Name	Pigment Red 151
CAS No.	61013-97-6
Molecular Formula	C₂₄H₂₃N₅O₅
Molecular Weight	461.47 g/mol
Synonyms	C.I. Pigment Red 151; Naphthol AS Red; PR 151; C.I. 15892; 3-Hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(2-methoxyphenyl)-2-naphthamide; Permanent Red FGR; Pigment Scarlet; Azo Condensation Pigment Red 151
EINECS	262-563-3

Quality Control

Our Pigment Red 151 is manufactured under a strict quality management system. Each batch is tested against rigorous in-house specifications to ensure consistent coloristic properties, chemical purity, and physical performance. Key parameters such as color strength, hue, particle size distribution, and thermal stability are verified. Certificates of Analysis (COA) detailing these results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Red Powder
Identification (IR)	Conforms
Color Strength	100 ± 5% (vs. Standard)
Hue	Conforms to Standard
Purity (HPLC)	≥ 96.0%
Volatile Matter (105°C)	≤ 2.0%
Ash Content	≤ 1.0%
pH Value (10% Aqueous Slurry)	6.0 - 8.0
Particle Size (D50)	≤ 0.5 μm
Oil Absorption	40 - 60 g/100g

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.