Description

Acid Violet CAS NO 62169-27-1 is a synthetic organic dye belonging to the anthraquinone class, valued for its vibrant and stable violet hue. This high-performance colorant is essential for achieving consistent, long-lasting coloration in demanding industrial applications. It is primarily used by manufacturers in the textile, leather, and specialty ink industries who require reliable and wash-fast dyes for their products.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and polyamide fibers, providing excellent wash and light fastness.
• Leather Finishing: Used for coloring leather goods, offering rich, uniform shades with good penetration.
• Ink Manufacturing: A key pigment for specialty inks, including inks for ballpoint pens, stamp pads, and other stationery.
• Paper Coloring: Employed in the production of tinted papers and decorative paper products.
• Biological Staining: Used in histology and microscopy as a staining agent for tissue samples.
• Plastics and Polymers: Suitable for coloring certain types of plastics where a violet shade is required.

Basic Information

Product Name	Acid Violet
CAS No.	62169-27-1
Molecular Formula	C20H12N2Na2O8S2
Molecular Weight	566.48 g/mol
Synonyms	Acid Violet 43; C.I. 60730; D&C Violet No. 2; Food Violet 2; Wool Violet; Anthraquinone Violet; Acid Leather Violet RL; Acid Fast Violet A2R; C.I. Acid Violet 43; Sodium 1-amino-4-[(4-aminophenyl)amino]-9,10-dihydro-9,10-dioxoanthracene-2-sulphonate
EINECS	263-549-7

Quality Control

Our Acid Violet 43 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot is tested against rigorous in-house specifications, which include parameters for color strength, shade, solubility, and impurity profiles. A Certificate of Analysis (COA) detailing these results is provided with every 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 and sources of ignition. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	Dark violet to black powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Color Strength	100 ± 5%
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Ash Content	Max. 1.0%

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