Description

Solvent Red 179 is a high-performance, oil-soluble diazo dye renowned for its intense red coloration and excellent solubility in non-polar media. This compound is critical for manufacturers requiring durable, vibrant colorants that maintain stability in demanding industrial environments. It is primarily utilized by producers of plastics, inks, and coatings who need to achieve consistent, high-quality pigmentation in their final products.

Application

• Primary colorant for polystyrene (PS), polycarbonate (PC), and polymethyl methacrylate (PMMA) resins.
• Manufacturing of colored masterbatches and polymer concentrates for injection molding and extrusion.
• Pigmentation of industrial inks, including solvent-based inks for flexographic and gravure printing.
• Coloring agent for wood stains, lacquers, and automotive refinish coatings.
• Staining of fuels, lubricants, and waxes for identification purposes.
• Production of colored toners and specialty printing materials.

Basic Information

Product Name	Solvent Red 179
CAS No.	6829-22-7
Molecular Formula	C24H20N4O2
Molecular Weight	396.44 g/mol
Synonyms	Solvent Red 179; C.I. Solvent Red 179; 1-[[4-(Phenylazo)phenyl]azo]-2-naphthol; Ceres Red 179; Macrolex Red EG; Oil Red 179; Plast Red 179; Aizen Sot Red 4
EINECS	229-923-7

Quality Control

Our Solvent Red 179 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Every lot is tested against rigorous internal specifications for color strength, hue, and chemical composition. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and performance characteristics is provided with each shipment.

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 heat sources and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark red powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 5% (vs. Standard)
Assay (HPLC)	≥ 98.0%
Solubility (in Toluene)	Complete, clear solution
Moisture Content (KF)	≤ 0.5%
Ash Content	≤ 0.5%

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