Description

C.I.Acid Brown 299 is a synthetic acid dye belonging to the azo chemical class, identified by CAS No. 12234-79-6. It is valued for its ability to provide consistent, vibrant brown shades with good fastness properties on protein-based substrates. This dye is essential for manufacturers in the textile and leather industries seeking reliable coloration for wool, silk, and nylon fibers. Its formulation ensures compatibility with standard acidic dyeing processes, offering a dependable solution for achieving deep, uniform brown hues.

Application

• Primary dyeing of wool and wool-blend textiles to achieve brown colorations.
• Coloration of silk fabrics and yarns, leveraging its affinity for protein fibers.
• Dyeing of nylon fibers in carpets, apparel, and industrial fabrics.
• Leather finishing and dyeing for upholstery, garments, and accessories.
• Used in the production of colored paper for specialty packaging and decorative purposes.
• Potential use as a colorant for wood stains and other non-textile substrates requiring acid dyes.

Basic Information

Product Name	C.I. Acid Brown 299
CAS No.	12234-79-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Acid Brown 299; C.I. 20195; Acid Leather Brown 2G; Acid Fast Brown G; Nylosan Brown E-R; Telon Brown K-3R; Erionyl Brown A-2R; Supranol Brown GW; Dermacid Brown 2G
EINECS	Contact for details

Quality Control

Our production of C.I. Acid Brown 299 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. The product is manufactured in compliance with relevant industry standards and is supported by a comprehensive Certificate of Analysis (COA) for each lot, detailing key parameters such as color strength, shade, solubility, and impurity profiles. We are committed to supplying material that meets the specific requirements of the global textile and leather dyeing markets.

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 stability.

Specification

Item	Specification
Appearance	Brown powder or granules
Identification (IR)	Conforms to standard
Color Strength	Standard depth ± 5%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to standard pattern
Solubility in Water	Conforms
Fastness Properties	To be specified per application

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