Description

Direct Brown 116 CAS NO 61724-81-0 is a high-performance, substantive azo dye belonging to the direct dye class, valued for its strong affinity to cellulosic fibers without the need for a mordant. Its primary value lies in delivering consistent, deep brown shades with excellent build-up properties and good overall fastness, making it a cost-effective coloring solution for industrial applications. This product is essential for manufacturers in the textile, leather, and paper industries seeking reliable and efficient dyeing processes.

Application

• Textile Dyeing: Primarily used for dyeing cotton, viscose, rayon, and other cellulosic fibers to achieve durable brown hues.
• Leather Coloring: Applied in the dyeing of leather goods, providing rich and uniform color penetration.
• Paper Staining: Used for coloring paper products, including packaging materials and specialty papers.
• Ink Formulation: Serves as a colorant in the manufacturing of inks for various printing applications.
• Wood Staining: Employed to impart color to wood and wood-based products.
• Biological Staining: Can be utilized in specific histological or microbiological staining protocols.

Basic Information

Product Name	Direct Brown 116
CAS No.	61724-81-0
Molecular Formula	C35H25N7Na2O10S2
Molecular Weight	813.69 g/mol
Synonyms	Direct Brown 116; C.I. Direct Brown 116; Direct Brown A2G; Amanil Brown A2G; Atul Direct Brown A2G; Dinamine Brown A2G; Sirius Brown A2G; Solar Brown BA; Diazol Brown 2G; Direct Fast Brown A2G
EINECS	Contact for details

Quality Control

Our Direct Brown 116 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested against rigorous internal specifications for key parameters such as color strength, shade, solubility, and impurity profile. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance protocols.

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 product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Brown to Dark Brown Powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Solubility in Water	Conforms
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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