Description

C.I. Solvent Brown 22 is a high-performance, oil-soluble solvent dye widely used for its excellent coloring properties and stability in non-aqueous systems. This product is valued for its ability to provide consistent, deep brown coloration with good light and heat fastness in demanding industrial applications. It is primarily utilized by manufacturers in the plastics, inks, coatings, and specialty chemical industries seeking reliable and efficient coloring agents.

Application

• Coloration of plastics and synthetic fibers, including polyolefins, polystyrene, and ABS.
• Manufacturing of printing inks, especially for packaging, publications, and specialty printing processes.
• Pigmentation of industrial coatings, lacquers, and wood stains.
• Coloring of waxes, polishes, and greases.
• Production of colored solvent-based markers and writing fluids.
• Tinting of fuels and lubricants for identification purposes.
• Used in the coloration of certain cosmetic and personal care products where oil solubility is required.

Basic Information

Product Name	C.I. Solvent Brown 22
CAS No.	61867-96-7
Molecular Formula	C24H18N4O4
Molecular Weight	426.43 g/mol
Synonyms	Solvent Brown 22; C.I. 11020; Oil Brown 2R; Solvent Brown R; 1,4-Benzenediamine, N,N'-bis(2,4-dinitrophenyl)-; 2,2'-[(1,4-Phenylenediimino)bis(2,4-dinitrobenzene)]; N,N'-Bis(2,4-dinitrophenyl)-1,4-benzenediamine; Brown 2R (Solvent dye)
EINECS	263-267-4

Quality Control

Our C.I. Solvent Brown 22 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against rigorous internal specifications for key parameters such as color strength, solubility, and purity. 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, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Brown powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Purity (HPLC)	≥ 98.0%
Solubility (in Toluene)	Clear, complete solution
Moisture Content	≤ 0.5%
Ash Content	≤ 0.5%
Light Fastness	≥ 6 (ISO 105-B02)
Heat Stability	≥ 280°C

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