Description

Acid Brown 422 is a synthetic organic dye belonging to the acid dye class, identified by CAS No. 126851-39-6. This high-performance colorant is valued for its strong affinity to protein fibers like wool, silk, and nylon, delivering excellent wash and light fastness properties. It is a critical component for manufacturers in the textile, leather, and paper industries seeking durable and vibrant brown shades.

Application

• Primary dyeing of wool, silk, and polyamide (nylon) fibers in the textile industry.
• Coloration of leather goods, providing rich and uniform brown tones.
• Pigmentation for specialty papers and paper products.
• Used in the formulation of inks for various marking and printing applications.
• Potential use as a biological stain in laboratory and microscopy settings.
• Coloring agent for certain types of anodized aluminum.

Basic Information

Product Name	Acid Brown 422
CAS No.	126851-39-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Acid Brown 422; C.I. Acid Brown 422; Acid Leather Brown 422; Brown 422; Acid Dye Brown 422; Acid Fast Brown 422; Acidol Brown 422; Telon Brown 422 (Trade Name); Nylosan Brown 422 (Trade Name)
EINECS	Contact for details

Quality Control

Our Acid Brown 422 is manufactured under a strict quality management system. Every batch undergoes rigorous testing to ensure consistent shade, strength, and purity, meeting the high standards required for industrial dyeing applications. A Certificate of Analysis (COA) detailing key parameters such as color strength, solubility, and impurity profile is provided with each shipment.

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 (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Brown Powder
Identification (IR)	Conforms
Assay (Color Strength)	≥ 98%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Matches Standard
Solubility in Water	Conforms

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