Description

Acid Brown 354 is a synthetic organic dye belonging to the acid dye class, identified by CAS No. 71799-43-4. It is valued for its ability to provide durable, vibrant brown shades with good leveling and migration properties on protein-based and polyamide substrates. This product is essential for manufacturers requiring consistent coloration and fastness in demanding textile applications. Its primary use is in the dyeing of wool, silk, and nylon fibers, as well as in leather finishing.

Application

• Primary dyeing of wool and wool blend textiles.
• Coloration of silk fabrics and yarns.
• Dyeing of nylon (polyamide) fibers for apparel and carpets.
• Leather dyeing for upholstery, footwear, and accessories.
• Used in the production of paper for specialty packaging or decorative purposes.
• Potential applications in coloring feathers and other specialty protein materials.

Basic Information

Product Name	Acid Brown 354
CAS No.	71799-43-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Acid Brown 354; C.I. Acid Brown 354; Brown 354; Acid Leather Brown 354; Dermacid Brown 354; Nylosan Brown 354; Telon Brown 354; Acid Dye Brown 354
EINECS	Contact for details

Quality Control

Our Acid Brown 354 is manufactured under a strict quality management system. Each batch undergoes comprehensive testing for critical parameters including color strength, shade, solubility, and fastness properties to ensure batch-to-batch consistency and compliance with industry standards. Certificates of Analysis (COA) detailing these specifications are available upon request.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after use to minimize exposure to atmospheric moisture.

Specification

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

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