Description

Basic Green 4 is a synthetic cationic (basic) dye belonging to the triarylmethane class, identified by CAS NO 569-64-2. This vibrant green colorant is valued for its strong tinctorial strength and affinity for substrates with anionic character. It serves as a critical component for industrial coloring and specialized staining applications. Key industries that utilize this product include textile manufacturing, paper production, and biological research.

Application

• Textile Dyeing: Primarily used for dyeing acrylic fibers, silk, and wool, imparting a bright green shade with good wash fastness.
• Paper Coloring: Employed in the production of colored papers, specialty tissues, and decorative paper products.
• Biological Staining: Functions as a vital stain in microbiology and histology for contrast enhancement under microscopic examination.
• Ink Formulation: Used in the manufacture of writing inks, stamp pad inks, and other specialty printing inks.
• Leather Finishing: Applied in the dyeing of leather goods to achieve consistent and vibrant green colors.
• Wood Staining: Suitable for coloring wood and wood-based materials in decorative applications.

Basic Information

Product Name	Basic Green 4
CAS No.	569-64-2
Molecular Formula	C23H25N2
Molecular Weight	329.46 g/mol
Synonyms	Malachite Green; Basic Green 4; Aniline Green; Victoria Green B; Benzaldehyde Green; Diamond Green B; C.I. 42000; Solid Green O
EINECS	209-322-8

Quality Control

Our Basic Green 4 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise color strength, purity, and solubility specifications. A Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment to guarantee traceability and compliance.

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 when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Green crystalline powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
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.