Description

Acid Brown 253 is a synthetic acid dye belonging to the azo chemical class, widely recognized for its excellent dyeing properties and color fastness. This product is engineered to deliver consistent, vibrant brown shades on protein fibers like wool, silk, and nylon, making it a critical component for high-quality textile coloration. It is essential for manufacturers in the textile, leather, and specialty paper industries seeking reliable and efficient dyeing solutions for their products.

Application

• Primary dyeing of wool, silk, and other natural protein fibers.
• Coloration of synthetic polyamide fibers, including nylon.
• Leather dyeing for footwear, apparel, and upholstery applications.
• Specialty paper and paperboard coloring.
• Ink formulation for specific printing applications.
• As a colorant in the manufacture of certain types of coatings.

Basic Information

Product Name	Acid Brown 253
CAS No.	12219-59-9
Molecular Formula	C32H24N8Na4O16S4
Molecular Weight	1048.88 g/mol
Synonyms	Acid Brown A-2R; C.I. Acid Brown 253; Acid Leather Brown A2R; Acidol Brown M-BRL; Amido Brown BRL; Dermacid Brown BRL; Lanasyn Brown BRL; Nylosan Brown E-BRL; Telon Brown BRL; Acid Brown BRL
EINECS	Contact for details

Quality Control

Our Acid Brown 253 is produced under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. The product undergoes comprehensive testing, including spectrophotometric analysis for strength and shade, to meet precise industry specifications. A Certificate of Analysis (COA) detailing purity, solubility, and other key parameters is provided with every shipment to guarantee compliance with your technical 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 strong oxidizing agents. The original container is designed for optimal product integrity.

Specification

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

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