Description

Acid Brown 369 is a synthetic organic dye belonging to the acid dye class, identified by CAS No. 97199-26-3. It is valued for its ability to provide durable, vibrant brown shades with good leveling and wash-fastness properties on protein-based and polyamide fibers. This dye is essential for manufacturers in the textile and leather industries seeking consistent coloration for products like wool, silk, nylon, and leather goods.

Application

• Primary dyeing of wool and silk fabrics and yarns.
• Coloration of nylon fibers in textile and carpet manufacturing.
• Leather dyeing for footwear, apparel, and upholstery.
• Used in the production of colored paper and specialty papers.
• Potential applications in the coloration of food casings and other non-food contact polymers.
• As a colorant for inks and coatings where acid dye compatibility is required.

Basic Information

Product Name	Acid Brown 369
CAS No.	97199-26-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Acid Brown 369; C.I. Acid Brown 369; Brown 369; Acid Leather Brown 369; Acid Dye Brown 369; Lanasyn Brown S-RBL; Telon Brown K-3R; Acid Fast Brown 369
EINECS	Contact for details

Quality Control

Our Acid Brown 369 is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise color strength, shade, and chemical specifications. A Certificate of Analysis (COA) detailing purity, solubility, and fastness properties is provided to guarantee batch-to-batch consistency and performance for your application.

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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Brown powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to standard
Moisture Content	≤ 5.0%
Water Solubility	Conforms to application requirements
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.