Description

Acid Brown 159 is a synthetic organic dye belonging to the acid dye class, widely recognized for its application in textile coloration. This product is valued for its ability to produce consistent, deep brown shades with good fastness properties on protein fibers like wool, silk, and nylon. It is a critical component for manufacturers in the textile, leather, and specialty paper industries seeking reliable and vibrant dyeing solutions. The compound is supplied as a high-purity powder to ensure optimal performance in industrial processes.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and polyamide (nylon) fibers to achieve durable brown shades.
• Leather Finishing: Used in the coloration of leather goods, providing rich color and good penetration.
• Paper Staining: Employed for tinting specialty papers, including decorative and packaging materials.
• Ink Formulation: A colorant component in the manufacture of certain inks for industrial marking or printing.
• Biomaterial Staining: Potential use in laboratory settings for histological staining or as a biological tracer.
• Polymer Coloring: Can be incorporated into synthetic polymers and plastics during manufacture for mass coloration.

Basic Information

Product Name	Acid Brown 159
CAS No.	61901-21-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Acid Brown 159; C.I. Acid Brown 159; Acid Leather Brown 2GL; Acidol Brown M-BL; Amacid Brown 2GL; Atul Acid Brown 2GL; Derma Brown 2GL; Dycosacid Brown 159; Lederacid Brown 2GL; Nylosan Brown E-BL; Telon Brown 2GL (Bayer); Vicoacid Brown 2GL
EINECS	Contact for details

Quality Control

Our Acid Brown 159 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including spectrophotometric analysis for strength and shade, and assessments for insolubles and heavy metal content. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications and industry standards.

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 heat sources and incompatible materials. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	Brown powder
Identification (IR)	Conforms to standard
Assay (Color Strength)	≥ 98%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to standard
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.