Description

Dianil Brown 3Gn is a high-performance organic pigment belonging to the azo dye class, identified by CAS NO 3811-71-0. This compound is valued for its excellent color strength, stability, and versatility in demanding industrial applications. It is primarily sought after by manufacturers in the textile, leather, plastics, and coatings industries for imparting durable and consistent brown shades.

Application

• Textile Dyeing and Printing: Used for coloring natural and synthetic fibers, providing good wash and light fastness.
• Leather Finishing: Applied in the dyeing of leather goods, including footwear, apparel, and upholstery, for rich brown hues.
• Plastics and Masterbatch Coloring: Imparts color to various polymers such as PVC, polyolefins, and engineering plastics during processing.
• Industrial Coatings and Paints: Employed in the formulation of solvent-based and water-based paints for automotive, industrial, and decorative applications.
• Paper Coloration: Used in specialty paper grades and paper coating formulations.
• Ink Manufacturing: Suitable for producing printing inks, including packaging and publication inks.

Basic Information

Product Name	Dianil Brown 3Gn
CAS No.	3811-71-0
Molecular Formula	C24H20N6O6
Molecular Weight	488.45 g/mol
Synonyms	Pigment Brown 3Gn; C.I. Pigment Brown 3; C.I. 21115; Dianil Brown GN; Azo Brown 3Gn; 2,2'-[(3,3'-Dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]; 3,3'-Dimethoxybenzidine Based Azo Pigment
EINECS	223-285-3

Quality Control

Our Dianil Brown 3Gn is manufactured under strict quality control protocols to ensure batch-to-batch consistency and performance. The product is tested against key parameters including color strength, shade, particle size distribution, and chemical purity. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance processes.

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Brown Powder
Identification (IR)	Conforms
Color Strength	100 ± 5% (vs. Standard)
Shade	Matches Standard
Purity (HPLC)	≥ 95.0%
Moisture Content	≤ 2.0%
Ash Content	≤ 1.0%
Particle Size (D50)	< 10 µm

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