Description

Solvent Red 8 is a synthetic organic dye belonging to the azo class, widely recognized for its vibrant red color. It is valued for its excellent solubility in non-polar organic solvents and its strong tinctorial strength, making it a cost-effective colorant for various industrial applications. This product is essential for manufacturers in the plastics, coatings, and specialty ink industries seeking consistent, high-performance coloration.

Application

• Primary colorant for coloring hydrocarbon-based solvents, waxes, and lubricants.
• Pigmentation of thermoplastic resins such as polystyrene, acrylics, and certain polycarbonates.
• Manufacturing of specialty printing inks, including flexographic and gravure inks for non-food packaging.
• Coloration of wood stains, polishes, and other decorative coatings.
• Used as a biological stain in microscopy for histological applications.
• Marker or tracer dye in industrial fluid systems for leak detection or flow visualization.

Basic Information

Product Name	Solvent Red 8
CAS No.	6472-55-5
Molecular Formula	C24H20N4O
Molecular Weight	380.44 g/mol
Synonyms	Sudan Red 7B; C.I. Solvent Red 8; C.I. 26050; 1-[[4-(Phenylazo)phenyl]azo]-2-naphthalenol; Oil Red; Ceres Red 7B; Fat Red 7B; Spirit Red 7B
EINECS	229-314-2

Quality Control

Our Solvent Red 8 is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot is tested against key parameters including color strength, solubility, and purity to meet industrial-grade specifications. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at ambient temperature (15-25°C). Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Solubility (in Toluene)	Complete, clear solution
Loss on Drying	≤ 2.0%
Ash Content	≤ 1.0%

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