Description

Acid Violet 68 is a synthetic organic dye belonging to the acid dye class, identified by CAS No. 61724-46-7. It is valued for its vibrant violet hue and strong affinity for protein-based fibers like wool, silk, and nylon, ensuring excellent wash and light fastness. This high-performance colorant is essential for manufacturers in the textile, leather, and specialty paper industries seeking consistent, brilliant coloration. Its reliable performance makes it a key component for creating durable and visually appealing products in competitive global markets.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and nylon fibers and fabrics to achieve a uniform violet shade.
• Leather Coloring: Used in the staining and finishing of leather goods, providing rich and penetrating color.
• Paper Staining: Employed in the production of specialty papers, including decorative and security papers.
• Ink Formulation: A colorant component in the manufacture of inks for various printing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.
• Polymer Coloring: Suitable for mass coloration of specific synthetic polymers and plastics.

Basic Information

Product Name	Acid Violet 68
CAS No.	61724-46-7
Molecular Formula	C20H16N3NaO6S2
Molecular Weight	489.47 g/mol
Synonyms	Acid Violet 5R; C.I. 62045; Acid Violet R; Acid Violet 68 (C.I.); 5-[(4-Amino-9,10-dihydro-9,10-dioxo-3-sulfo-1-anthracenyl)amino]-2-hydroxy-3-methylbenzoic acid, monosodium salt; Benzoic acid, 5-[(4-amino-9,10-dihydro-9,10-dioxo-3-sulfo-1-anthracenyl)amino]-2-hydroxy-3-methyl-, monosodium salt; Acid Leather Violet R
EINECS	262-966-8

Quality Control

Our Acid Violet 68 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot undergoes comprehensive analysis, including purity assay, shade strength evaluation, and solubility testing, to meet precise industry specifications. A Certificate of Analysis (COA) detailing all test 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark Violet Powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Shade & Strength	Within agreed standard
Heavy Metals (as Pb)	≤ 20 ppm

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