Description

C.I. Direct Brown 46 is a synthetic azo dye belonging to the direct dye class, valued for its ability to color cellulose fibers like cotton, viscose, and paper without the need for a mordant. Its primary commercial value lies in providing a cost-effective and wash-fast brown shade for textile and paper applications. This dye is essential for manufacturers in the textile dyeing, paper coloring, and leather finishing industries seeking consistent and reliable colorants.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fibers to achieve brown hues.
• Paper Coloring: Used in the production of colored papers, tissues, and packaging materials.
• Leather Finishing: Imparts color to leather goods in the tanning industry.
• Ink Formulation: A potential colorant for certain types of inks and coatings.
• Wood Staining: Can be used for coloring wood and related products.

Basic Information

Product Name	C.I. Direct Brown 46
CAS No.	8003-51-8
Molecular Formula	C29H19N5Na2O7S2
Molecular Weight	667.60 g/mol
Synonyms	Direct Brown 46; Direct Brown G; C.I. 30060; Direct Brown G (C.I. 30060); Direct Fast Brown G; Direct Brown GRL; Pontamine Brown G; Aizen Direct Brown GH; Atlantic Direct Brown G; Benzo Brown G; Chloramine Brown G; Diazol Brown G; Durazol Brown G; Sirius Brown G; Solamine Brown G
EINECS	Contact for details

Quality Control

Our C.I. Direct Brown 46 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Quality parameters including color strength, shade, solubility, and fastness properties are rigorously tested against industry standards. A Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with every shipment.

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 and moisture to maintain product integrity.

Specification

Item	Specification
Appearance	Brown powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Ash Content	≤ 1.0%
pH (1% Solution)	6.0 - 8.0
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.