Description

C.I. Solvent Brown 8 is a high-performance, oil-soluble diazo dye widely recognized for its excellent tinctorial strength and stability in non-polar systems. This product is essential for achieving consistent, deep brown coloration in a variety of industrial applications where water resistance and compatibility with organic matrices are critical. It is primarily utilized by manufacturers in the plastics, coatings, and specialty ink sectors seeking reliable and vibrant pigmentation.

Application

• Coloration of thermoplastic resins such as polystyrene, ABS, and polycarbonate.
• Staining and tinting of industrial lubricants, greases, and waxes for identification purposes.
• Manufacture of solvent-based inks for flexographic and gravure printing.
• Pigmentation for wood stains and varnishes.
• Coloring agent in fuel markers and dyes.
• Tinting of adhesives and sealants.
• Used in the production of colored pencils and artist's oil paints.
• Potential use in the coloration of synthetic fibers during melt spinning.

Basic Information

Product Name	C.I. Solvent Brown 8
CAS No.	54466-34-1
Molecular Formula	C24H20N4O4
Molecular Weight	428.44 g/mol
Synonyms	Solvent Brown 8; C.I. 12195; Oil Brown 2R; Ceres Brown R; Aizen SOT Brown-1; Sudan Brown; 1-[(2-Methoxyphenyl)azo]-2-naphthol; 1-[(2-Methoxyphenyl)azo]-2-naphthalenol
EINECS	259-184-8

Quality Control

Our C.I. Solvent Brown 8 is manufactured under a strict quality management system. Every batch is tested to ensure it meets precise specifications for color strength, solubility, and purity, guaranteeing batch-to-batch consistency for your formulations. A comprehensive Certificate of Analysis (COA) documenting identity, assay, and impurity profiles is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Brown powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Solubility (in Toluene)	Complete, clear solution
Color Strength	100 ± 3% (vs. Standard)
Moisture (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.