Description

Direct Brown 210 is a high-performance, synthetic azo dye widely used for its excellent color fastness and dyeing properties. This product is essential for achieving consistent, deep brown shades on cellulosic fibers like cotton, viscose, and paper. It is a critical raw material for manufacturers in the textile, leather, and paper industries seeking reliable and cost-effective coloring solutions.

Application

• Primary dyeing of cotton and other cellulosic textiles.
• Coloration of viscose rayon and blended fabrics.
• Dyeing of leather goods and accessories.
• Production of colored paper and paperboard.
• Manufacturing of soaps and detergents where color is required.
• Used in the formulation of certain inks and coatings.

Basic Information

Product Name	Direct Brown 210
CAS No.	12222-29-6
Molecular Formula	C34H24N10Na4O14S4
Molecular Weight	1028.86 g/mol
Synonyms	Direct Brown 210; C.I. Direct Brown 210; Direct Brown 2R; Direct Brown GR; Direct Brown M; Direct Fast Brown 2R; Direct Fast Brown GR; Benzo Brown 2R; Pontamine Brown 2R
EINECS	Contact for details

Quality Control

Our Direct Brown 210 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. The product is tested against key parameters including color strength, shade, solubility, and fastness properties. A Certificate of Analysis (COA) detailing purity and performance specifications is provided with every shipment to guarantee it meets your application requirements.

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 incompatible materials. The container should be kept tightly sealed when not in use to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Brown to dark brown powder
Identification (IR)	Conforms
Color Strength	Standard ± 3%
Shade	Matches standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Solubility in Water	Conforms
Fastness Properties	To be specified per grade

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