Description

Pigment Red 257 is a high-performance, synthetic organic pigment belonging to the naphthol AS class, valued for its excellent color strength and durability. This pigment is engineered to provide superior lightfastness, weather resistance, and chemical stability in demanding applications. It is a critical raw material for industries requiring durable and vibrant red coloration, particularly in automotive coatings, industrial paints, and high-quality plastics.

Application

• Automotive OEM and Refinish Coatings: Provides durable, fade-resistant red shades for car body paints and plastic components.
• Industrial and Architectural Paints: Used in solvent-based and coil coatings for machinery, agricultural equipment, and building facades.
• Plastics Coloring: Imparts stable red coloration to engineering plastics like PVC, polyolefins, and ABS for automotive parts, consumer goods, and packaging.
• Printing Inks: Suitable for high-performance printing inks, including packaging and decorative inks requiring good lightfastness.
• Specialty Coatings: Employed in marine, aerospace, and other protective coating systems demanding long-term color retention.

Basic Information

Product Name	Pigment Red 257
CAS No.	117989-29-4
Molecular Formula	C24H15ClN4O4
Molecular Weight	458.85 g/mol
Synonyms	C.I. Pigment Red 257; Naphthol AS Red; PR 257; C.I. 562150; 3-Hydroxy-4-[(2-methoxy-5-methylphenyl)azo]-N-(2-chlorophenyl)-2-naphthamide; Pigment Scarlet; Permanent Red 257; Fast Red 257
EINECS	Contact for details

Quality Control

Our Pigment Red 257 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive testing of key parameters including color strength, hue, particle size distribution, and chemical purity. Certificates of Analysis (COA) detailing these specifications are provided with every shipment to support your quality assurance protocols.

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 strong oxidizing agents. The container must be kept tightly closed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Red Powder
Color Strength	100 ± 5% (vs. Standard)
Hue	Conforms to Standard
Lightfastness (1-8)	≥ 7
Heat Resistance (°C)	≥ 200
Moisture Content	≤ 2.0%
Residue on Sieve (45μm)	≤ 0.5%
Identification (IR)	Conforms

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