Description

Acid Violet 49 is a synthetic anthraquinone-based acid dye known for its vibrant violet hue and good lightfastness. It is a critical coloring agent valued for its ability to produce consistent, high-intensity shades on protein fibers like wool, silk, and nylon. This dye is essential for manufacturers in the textile, leather, and specialty ink industries seeking reliable and wash-fast coloration. Its chemical stability makes it suitable for applications requiring precise color matching and durability.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers to achieve violet and purple shades with good wash and light fastness.
• Leather Coloring: Used in the dyeing of leather goods, providing rich, penetrating color for products like apparel, accessories, and upholstery.
• Ink Formulation: Employed in the production of specialty inks, including inks for ballpoint pens, stamp pads, and other stationery products.
• Paper Staining: Utilized for coloring paper and paper products where a specific violet tone is required.
• Biological Staining: Can be used as a histological stain in laboratory settings for microscopic analysis of tissues.
• Polymer Coloring: Incorporated into certain plastics and synthetic materials to impart color during manufacturing.

Basic Information

Product Name	Acid Violet 49
CAS No.	1694-09-3
Molecular Formula	C20H11N2NaO5S
Molecular Weight	414.37 g/mol
Synonyms	Acid Violet 5B; C.I. 62045; Acid Violet 5BN; Acid Violet R; Wool Violet 5BN; Nylomine Violet C-B; Anthraquinone Violet; 1-Amino-4-(p-toluidino)anthraquinone-2-sulfonic acid sodium salt; 9,10-Anthracenedione, 1-amino-4-[(4-methylphenyl)amino]-9,10-dihydro-2-sulfonic acid, sodium salt (1:1)
EINECS	216-909-8

Quality Control

Our Acid Violet 49 is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high performance. Each lot is tested against key parameters including color strength, shade, solubility, and impurity profile to meet industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with every shipment to guarantee specification compliance.

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 light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark violet to black powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Ash Content	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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