Description

Red 4 CAS NO 1342-35-4 is a synthetic organic colorant belonging to the azo dye class, valued for its vibrant and stable red hue. This compound is essential for industries requiring consistent, high-quality coloration in their products. It is primarily utilized in the manufacturing of inks, coatings, plastics, and textiles where color fastness and batch-to-batch uniformity are critical.

Application

• Industrial Inks and Pigments: Used as a key colorant in the formulation of printing inks, including for packaging and publications.
• Plastics and Polymers: Imparts a stable red color to a wide range of thermoplastic and thermoset materials during masterbatch production.
• Textile Dyeing: Employed in the dyeing of synthetic fibers, providing good wash and light fastness properties.
• Coatings and Paints: Serves as a pigment in industrial and decorative coatings, offering excellent dispersion and color strength.
• Paper Coloring: Applied in the surface coating or mass coloration of specialty papers and boards.
• Research and Development: Used as a reference standard or intermediate in chemical synthesis and analytical laboratories.

Basic Information

Product Name	Red 4 CAS NO 1342-35-4
CAS No.	1342-35-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Red No. 4; C.I. Pigment Red 4; Permanent Red 4; 1-[(4-Methyl-2-nitrophenyl)azo]-2-naphthalenol; Toluidine Red; Lithol Red 4; C.I. 12085; Pigment Red 4
EINECS	Contact for details

Quality Control

Our Red 4 is manufactured under a strict quality management system to ensure it meets the precise requirements of industrial applications. Each batch is tested for critical parameters including color strength, hue, and impurity profile. Certificates of Analysis (COA) documenting purity and performance specifications 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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Red Powder
Identification (IR)	Conforms
Color Strength	100 ± 5%
Hue	Within agreed range
Moisture Content	≤ 2.0%
Ash Content	≤ 1.0%
Particle Size	Contact for details

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