Description

Basic Green 4 is a synthetic cationic (basic) dye belonging to the triarylmethane class, widely recognized for its brilliant green color. This compound is valued for its strong tinctorial strength and affinity for substrates with anionic character, making it a versatile colorant in industrial applications. Key industries that utilize this dye include textile manufacturing, paper production, and biological staining for microscopy.

Application

• Textile Dyeing: Primarily used for dyeing silk, wool, and acrylic fibers, imparting a bright green shade.
• Paper Coloring: Employed in the production of colored papers, including decorative and specialty papers.
• Biological Staining: Acts as a vital stain in microbiology and histology for contrast enhancement under a microscope.
• Leather Finishing: Used for coloring leather goods to achieve consistent and vibrant green hues.
• Ink Formulation: A component in the manufacture of green inks for various printing applications.
• Research & Development: Serves as a chemical intermediate or indicator in laboratory synthesis and analytical procedures.

Basic Information

Product Name	Basic Green 4
CAS No.	2437-29-8
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	219-441-7

Quality Control

Our Basic Green 4 is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot is tested against established specifications for color strength, purity, and solubility. A Certificate of Analysis (COA) detailing specific test results is provided with every shipment to support your quality assurance protocols.

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 such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Green crystalline powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Color Strength	100 ± 5%
Loss on Drying	Max. 1.0%
Water Solubility	Completely soluble
Ash Content	Max. 0.5%

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