Description

Pontacyl Violet 4Bsn is a synthetic organic dye belonging to the triarylmethane class, identified by CAS NO 1681-60-3. This vibrant violet colorant is valued for its strong tinctorial strength and good solubility in aqueous and selected organic systems. It serves as a critical component for industrial color formulation and specialized staining applications. Key industries that utilize this product include textile manufacturing, biological staining, and the production of inks and specialty coatings.

Application

• Textile Dyeing: Used for coloring silk, wool, and polyamide fibers, providing a bright violet hue.
• Biological Staining: Acts as a histological stain in microscopy for differentiating tissue components.
• Ink Manufacturing: Imparts color to writing inks, stamp pad inks, and other specialty printing fluids.
• Paper Coloring: Employed in the tinting of specialty papers and paper products.
• Leather Finishing: Used for dyeing leather goods to achieve consistent violet shades.
• Indicator Chemistry: Can be utilized as a pH indicator or in chemical detection systems.
• Educational & Laboratory Use: Serves as a reagent in academic and research laboratory experiments.

Basic Information

Product Name	Pontacyl Violet 4Bsn
CAS No.	1681-60-3
Molecular Formula	C₂₈H₃₁N₃O₆S₂
Molecular Weight	569.69 g/mol
Synonyms	Acid Violet 4B; Wool Violet 4BN; C.I. 42640; C.I. Acid Violet 4B; Aizen Acid Violet 4BH; Amacid Violet 4B; Atul Acid Violet 4B; Pontacyl Violet 4BS; Acid Violet 4BN; Violet 4B
EINECS	Contact for details

Quality Control

Our Pontacyl Violet 4Bsn is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including identity confirmation by spectroscopy, purity assay, and assessment of key impurities to ensure it meets the required specifications for your application. A Certificate of Analysis (COA) detailing the results is provided with every shipment to guarantee traceability and batch-to-batch consistency.

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.

Specification

Item	Specification
Appearance	Dark violet to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Water Solubility	Freely soluble
Ash Content	≤ 1.0%

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