Description

Acid Brown 282 CAS NO 12219-65-7 is a high-performance, metal-complex acid dye specifically engineered for the coloration of polyamide fibers, wool, and silk. Its formulation delivers exceptional color fastness properties, including excellent lightfastness and washfastness, which are critical for durable textile applications. This dye is a preferred choice for manufacturers in the textile and leather industries seeking reliable, vibrant, and consistent brown shades for their premium products.

Application

• Primary dyeing of nylon (polyamide 6 and polyamide 6,6) fibers and fabrics.
• Coloration of wool and silk textiles, including blends.
• Dyeing of leather to achieve rich, uniform brown tones.
• Used in the production of carpets, upholstery, and automotive textiles where durability is paramount.
• Application in technical textiles requiring consistent dye uptake and performance.
• Suitable for exhaust dyeing processes under acidic conditions.

Basic Information

Product Name	Acid Brown 282
CAS No.	12219-65-7
Molecular Formula	C32H20CrN8O10S2*2Na
Molecular Weight	879.73 g/mol (Disodium Salt)
Synonyms	Acid Brown G; C.I. Acid Brown 282; Acid Leather Brown G; Neolan Brown G; Telon Brown G; Chromium complex of 5-[(4,5-Dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxybenzenesulfonic acid, disodium salt; Acid Metal Complex Brown 282
EINECS	Contact for details

Quality Control

Our Acid Brown 282 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Every lot is tested against industry-standard specifications for key parameters such as dye content, shade, solubility, and fastness properties. A comprehensive Certificate of Analysis (COA) detailing these results is provided with each shipment to guarantee compliance with your technical requirements.

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 product is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Brown powder
Identification (IR)	Conforms to standard
Assay (Dye Content)	≥ 95%
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Shade	Conforms to standard pattern
Fastness to Light	≥ 5-6 (ISO 105-B02)
Fastness to Washing	≥ 4-5 (ISO 105-C03)

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