Description

Pigment Red 13 CAS NO 6535-47-3 is a high-performance, monoazo-based organic pigment renowned for its strong, clean red hue and excellent color strength. This pigment is valued for its cost-effectiveness and reliable performance in providing durable coloration. It is primarily used by manufacturers in the plastics, paints and coatings, and printing ink industries seeking a stable and vibrant red shade for their products.

Application

• Primary colorant for plastics and synthetic resins, including PVC, polyolefins, and rubber.
• Manufacturing of high-quality industrial paints, architectural coatings, and automotive finishes.
• Formulation of printing inks for packaging, publications, and textiles.
• Coloration of masterbatches and color concentrates for consistent batch-to-batch production.
• Pigmentation of latex products, sealants, and adhesives.
• Used in the coloring of paper and specialty paper products.

Basic Information

Product Name	Pigment Red 13
CAS No.	6535-47-3
Molecular Formula	C32H24Cl2N6O6
Molecular Weight	659.48 g/mol
Synonyms	Pigment Red 13; C.I. 12395; C.I. Pigment Red 13; 3-Hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(2-methylphenyl)-2-naphthalenecarboxamide; Permanent Red FR; Lithol Scarlet 4450; Red 13; 2-Naphthalenecarboxamide, 3-hydroxy-4-[(2-methoxy-5-nitrophenyl)azo]-N-(2-methylphenyl)-
EINECS	229-447-5

Quality Control

Our Pigment Red 13 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Every lot undergoes comprehensive testing for key parameters including color strength, hue, particle size distribution, and chemical stability. Certificates of Analysis (COA) documenting these results are available upon request 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 incompatible materials and sources of ignition. Due to its light-sensitive nature, prolonged direct exposure to sunlight should be avoided to maintain optimal color properties.

Specification

Item	Specification
Appearance	Red Powder
Color Strength	100 ± 5% (vs. Standard)
Hue	Conforms to Standard
Particle Size (D50)	≤ 1.0 μm
Oil Absorption	40 - 60 g/100g
Heat Resistance	≥ 180 °C
Lightfastness	≥ 6-7 (ISO 105-B02)
Moisture Content	≤ 2.0 %
Ash Content	≤ 1.0 %

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