Description

Acid Brown 75 is a synthetic acid dye belonging to the azo dye class, widely recognized for its robust coloring properties and good fastness characteristics. This product is valued for its ability to produce consistent, deep brown shades on protein-based fibers like wool, silk, and leather, as well as on polyamide. Industries requiring reliable and vibrant coloration for textiles, leather goods, and specialty papers will find Acid Brown 75 CAS NO 8011-86-7 to be an essential component in their manufacturing processes.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers to achieve durable brown hues.
• Leather Coloring: Used in the tanning industry for coloring leather goods, providing excellent penetration and color uniformity.
• Paper Staining: Employed in the production of specialty and decorative papers where color fastness is important.
• Ink Formulation: A component in the manufacture of inks for various marking and writing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.
• Wood Staining: Can be utilized to impart color to wood surfaces in furniture and finishing applications.

Basic Information

Product Name	Acid Brown 75
CAS No.	8011-86-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Acid Brown G; C.I. Acid Brown 75; Acid Leather Brown G; Amido Brown G; Nylon Fast Brown G; Telon Fast Brown G; Supranol Brown G; Lissamine Brown G
EINECS	Contact for details

Quality Control

Our Acid Brown 75 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Quality parameters including color strength, shade, solubility, and impurity profiles are rigorously tested against established standards. A Certificate of Analysis (COA) detailing specific test 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 incompatible materials. The product is light-sensitive and should be stored away from direct light exposure to maintain stability.

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%
Ash Content	≤ 1.0%
Shade	Matches reference standard
Solubility in Water	Conforms

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