Description

Red 4 CAS NO 308061-47-4 is a synthetic organic colorant belonging to the azo dye class, valued for its vibrant and stable red hue. This compound is essential for manufacturers requiring consistent, high-performance coloration in a variety of industrial and specialty applications. It is primarily utilized by producers in the plastics, coatings, inks, and specialty chemical sectors where precise color matching and durability are critical.

Application

• Plastics and Polymer Coloring: Used as a masterbatch or direct pigment for coloring polyolefins (PP, PE), PVC, and engineering plastics.
• Industrial Coatings and Paints: Imparts durable color to industrial paints, automotive coatings, and protective finishes.
• Printing Inks: A key component in solvent-based, water-based, and UV-curable inks for packaging and commercial printing.
• Synthetic Fibers: Employed in the mass coloration of nylon, polyester, and other synthetic fibers during the polymerization or spinning process.
• Specialty Chemicals: Serves as a colorant in cleaning products, waxes, and other non-food chemical formulations.
• Research & Development: Used as a reference standard or intermediate in chemical synthesis and analytical laboratories.

Basic Information

Product Name	Red 4 CAS NO 308061-47-4
CAS No.	308061-47-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Pigment Red 4; Red 4; Permanent Red 4; Pigment Red 4; Azoic Red 4; 1-[(4-Methyl-2-nitrophenyl)azo]-2-naphthalenol; 2-Naphthol Red; Toluidine Red (specific shade); Lithol Red (variant); CI 12085
EINECS	Contact for details

Quality Control

Our Red 4 CAS NO 308061-47-4 is produced under a stringent quality management system to ensure batch-to-batch consistency and performance. Quality parameters including color strength, shade, and chemical purity are rigorously tested against established specifications. A Certificate of Analysis (COA) detailing these results is provided with every shipment to guarantee compliance with your technical requirements.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Red Powder
Identification (IR)	Conforms
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed tolerance
Moisture Content	≤ 2.0%
Ash Content	≤ 1.0%
Particle Size	≤ 5.0 μm (D50)
Solubility	Insoluble in water; Soluble in specific organic solvents

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