Description

C.I. Basic Violet 37 is a synthetic cationic dye belonging to the triarylmethane class, valued for its intense and stable violet coloration. This compound is essential for applications requiring a high degree of tinctorial strength and good solubility in polar solvents. It is primarily utilized by manufacturers in the textile, paper, and specialty ink industries for dyeing and printing processes.

Application

• Primary dye for acrylic, modacrylic, and other synthetic fibers in the textile industry.
• Coloration of specialty papers, including decorative and security papers.
• Manufacturing of inks for ballpoint pens, stamp pads, and other writing instruments.
• Biological staining applications in microscopy and histology.
• As a colorant for leather and anodized aluminum.
• Potential use in the formulation of dyes for plastics and coatings.

Basic Information

Product Name	C.I. Basic Violet 37
CAS No.	61968-17-0
Molecular Formula	C25H30ClN3
Molecular Weight	407.98 g/mol
Synonyms	Basic Violet 37; Aizen Cathilon Pink FGH; Astrazon Pink FG; Maxilon Pink FG; Sevron Pink B; C.I. 42535; 4-[(4-Amino-3-methylphenyl)(4-imino-3-methyl-2,5-cyclohexadien-1-ylidene)methyl]-2-methylbenzenamine monohydrochloride; Basic Red 9 (related class)
EINECS	Contact for details

Quality Control

Our production of C.I. Basic Violet 37 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance. Each lot is analyzed for key parameters including color strength, shade, solubility, and impurity profile. A comprehensive Certificate of Analysis (COA) documenting purity, physical properties, and conformance to agreed specifications is provided with every shipment.

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 greenish powder or crystals
Identification (IR)	Conforms to structure
Color Strength	≥ 98% (vs. Standard)
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Completely soluble
Ash Content	≤ 1.0%

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