Description

Acid Brown 106 is a synthetic acid dye belonging to the azo dye class, identified by CAS No. 61724-11-6. It is valued for its ability to provide consistent, durable brown shades with good light and wash fastness properties on protein-based fibers. This dye is essential for manufacturers in the textile and leather industries seeking reliable coloration for nylon, wool, and silk. Its formulation ensures excellent leveling and penetration, making it suitable for high-quality dyeing applications.

Application

• Primary dyeing of nylon fibers and fabrics for apparel and home textiles.
• Coloration of wool and silk products, including yarns, garments, and carpets.
• Leather dyeing for footwear, upholstery, and fashion accessories.
• Used in the production of paper for specialty packaging and decorative purposes.
• Potential application in coloring feathers and other natural protein materials.
• Formulation of inks for specific marking and printing applications.

Basic Information

Product Name	Acid Brown 106
CAS No.	61724-11-6
Molecular Formula	C32H24N8Na4O16S4
Molecular Weight	984.80 g/mol
Synonyms	Acid Brown 106; C.I. Acid Brown 106; Acid Leather Brown 2G; Nylosan Brown E-R; Telon Brown K-3R; Acid Fast Brown A; Lanasyn Brown S-2GL; Dermacid Brown 2R
EINECS	Contact for details

Quality Control

Our Acid Brown 106 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including color strength, shade, solubility, and impurity profile. A Certificate of Analysis (COA) documenting purity, physical properties, and conformance to specification is provided with every shipment to guarantee product integrity for your industrial processes.

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 powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to standard
Solubility in Water	Conforms
Heavy Metals (as Pb)	≤ 50 ppm

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