Description

Basic Violet 28 is a synthetic cationic dye belonging to the triarylmethane class, identified by CAS No. 12221-74-8. It is valued for its intense and stable violet coloration, making it a critical component in demanding industrial applications where colorfastness and performance are paramount. This product is essential for manufacturers in sectors such as textiles, specialty inks, and biological staining, who require a reliable and consistent colorant for their high-quality products.

Application

• Textile Dyeing and Printing: Used for coloring natural and synthetic fibers, particularly where a deep, vibrant violet shade is required.
• Ink Manufacturing: Serves as a key pigment in the production of specialty inks for security printing, packaging, and high-resolution digital printing.
• Biological Staining: Employed in histological and microbiological laboratories as a staining agent for tissue samples and cell structures.
• Paper Coloring: Applied in the manufacture of colored papers, decorative laminates, and security documents.
• Leather Finishing: Used to dye leather goods, providing rich and uniform color.
• Plastics and Polymers: Incorporated as a colorant for plastics, resins, and masterbatches.

Basic Information

Product Name	Basic Violet 28
CAS No.	12221-74-8
Molecular Formula	C29H31ClN2O3
Molecular Weight	491.02 g/mol
Synonyms	C.I. Basic Violet 28; Astra Phloxine FG; Aizen Cathilon Pink FGH; Basic Red Violet; Maxilon Red Violet FBL; Cationic Red Violet; 4-[(4-Amino-9,10-dihydro-9,10-dioxo-3-phenothiazinyl)amino]-N,N,N-trimethylbenzenaminium chloride
EINECS	Contact for details

Quality Control

Our Basic Violet 28 is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. The product undergoes comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling. Certificates of Analysis (COA) detailing all test results are available upon request to support your quality assurance and regulatory compliance needs.

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 green to violet powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Ash Content	≤ 1.0%
Water Solubility	Freely soluble

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