Description

C.I. Direct Violet 53 is a synthetic, water-soluble direct dye belonging to the azo chemical class, identified by CAS NO 61725-03-9. It is valued for its strong affinity to cellulosic fibers, providing vibrant violet shades with good wash fastness properties. This dye is essential for manufacturers in the textile and paper industries seeking efficient and consistent coloration for materials like cotton, viscose, and paper pulp.

Application

• Primary dyeing of cellulosic textiles such as cotton, viscose, and rayon.
• Coloration of paper and paperboard for packaging and specialty papers.
• Used in the production of leather for uniform dyeing.
• Ink formulation for specific writing and printing inks.
• As a colorant for wood staining applications.
• Potential use as a biological stain in laboratory settings.

Basic Information

Product Name	C.I. Direct Violet 53
CAS No.	61725-03-9
Molecular Formula	C29H19N5Na2O8S2
Molecular Weight	683.65 g/mol
Synonyms	Direct Violet 53; C.I. 27905; Direct Violet NB; Direct Violet 53 (C.I. 27905); Benzo Violet; Direct Violet 53 (VAT); Pontamine Violet; Sirius Violet; Direct Fast Violet; Atul Direct Violet 53; Azo Violet Direct Dye
EINECS	Contact for details

Quality Control

Our C.I. Direct Violet 53 is manufactured under a strict quality management system. Every batch is tested to ensure consistent shade, strength, and solubility, meeting the specifications required for industrial dyeing processes. A Certificate of Analysis (COA) detailing purity, dye content, and impurity profile is provided with each shipment to guarantee traceability and performance.

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	Dark Violet to Black Powder
Identification (IR)	Conforms
Dye Content	≥ 95%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Matches Standard
Solubility in Water	Conforms
pH (1% Solution)	6.0 - 8.0

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