Description

Acid Brown 97 is a synthetic acid dye belonging to the azo dye class, identified by CAS No. 61901-18-6. It is valued for its strong affinity to protein fibers like wool, silk, and nylon, providing durable and vibrant brown shades. This dye is essential for manufacturers in the textile, leather, and paper industries seeking consistent coloration with good fastness properties.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers to achieve a range of brown hues.
• Leather Finishing: Used for coloring leather goods, offering good penetration and color uniformity.
• Paper Staining: Employed in the production of specialty colored papers and paper products.
• Ink Formulation: A component in the manufacture of inks for various printing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings.

Basic Information

Product Name	Acid Brown 97
CAS No.	61901-18-6
Molecular Formula	C32H24N8Na2O8S2
Molecular Weight	774.75 g/mol
Synonyms	Acid Brown 97; C.I. Acid Brown 97; C.I. 20195; Acid Leather Brown D; Amido Brown M-R; Dermacid Brown BR; Lanaperl Brown B-R; Supranol Brown BRL; Telon Brown BRL; Tectilon Brown 2R
EINECS	Contact for details

Quality Control

Our Acid Brown 97 is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise color strength, purity, and application performance standards. A Certificate of Analysis (COA) documenting key parameters is provided with every shipment to guarantee consistency and traceability.

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 and should be stored away from direct light exposure.

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
Fastness Properties	To be specified per grade

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