Description

Pigment Red 52 is a high-performance, synthetic organic pigment belonging to the Naphthol AS chemical class, identified by CAS No. 1325-11-7. It is valued for its excellent color strength, good lightfastness, and heat stability, making it a reliable choice for demanding coloration applications. This pigment is primarily used by manufacturers in the plastics, coatings, and printing ink industries seeking vibrant, durable red shades.

Application

• Coloration of plastics such as PVC, polyolefins, and engineering resins.
• Manufacturing of industrial and decorative paints and coatings.
• Formulation of printing inks for packaging, publications, and textiles.
• Pigmentation of synthetic fibers and masterbatches.
• Coloring for rubber and elastomeric products.
• Use in specialty applications requiring a stable, opaque red hue.

Basic Information

Product Name	Pigment Red 52
CAS No.	1325-11-7
Molecular Formula	C₂₃H₁₇ClN₂O₄
Molecular Weight	420.84 g/mol
Synonyms	Pigment Red 52; C.I. 15860; Naphthol Red; Permanent Red FRLL; C.I. Pigment Red 52; 3-Hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(2-methylphenyl)-2-naphthamide; 2-Naphthalenecarboxamide, 3-hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(2-methylphenyl)-; C.I. 15860:1
EINECS	215-381-3

Quality Control

Our Pigment Red 52 is manufactured under a strict quality management system. Each batch undergoes comprehensive testing for key parameters including color strength, hue, particle size distribution, and chemical purity to ensure consistent performance and compliance with industry standards. Certificates of Analysis (COA) are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Red Powder
Identification (IR)	Conforms
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed tolerance
Purity (HPLC)	≥ 95.0%
Moisture Content	≤ 2.0%
Ash Content	≤ 1.0%
Particle Size (D50)	0.2 - 0.5 μm

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