Description

Diamine Green B is a synthetic organic dye belonging to the triarylmethane class, identified by CAS NO 4335-09-5. This compound is valued for its strong, vivid green coloration and its utility in specialized industrial and analytical applications where precise colorimetric properties are required. It serves as a critical component for manufacturers and researchers in sectors such as textiles, biological staining, and the production of specialized inks and pigments.

Application

• Textile Dyeing: Used for coloring natural and synthetic fibers, particularly in applications requiring a stable green hue.
• Biological Staining: Employed as a histological stain in microscopy for visualizing cellular and tissue structures in laboratory settings.
• Ink Manufacturing: A key colorant in the formulation of specialty printing inks, including for security and decorative purposes.
• Indicator Chemistry: Utilized in the preparation of pH indicators and other analytical reagents for chemical analysis.
• Paper Coloring: Applied in the tinting of specialty papers and paper products.
• Leather Finishing: Used in the dyeing process for leather goods to achieve specific color finishes.

Basic Information

Product Name	Diamine Green B
CAS No.	4335-09-5
Molecular Formula	C27H31N2O6S2·Na
Molecular Weight	566.66 g/mol
Synonyms	Acid Green 50; C.I. 44090; Wool Green S; Diamond Green B; Lissamine Green B; Benzo Green; Aniline Green; [4-[4-(Dimethylamino)phenyl][4-(ethylamino)-1-naphthyl]methylene]-2,5-cyclohexadien-1-ylidene]ethylammonium hydrogen sulfate sodium salt
EINECS	224-411-7

Quality Control

Our Diamine Green B is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and reliability. We provide comprehensive specifications and Certificates of Analysis (COA) for every shipment, detailing purity, identity, and impurity profiles. Our quality protocols are designed to meet the exacting standards of industrial and laboratory applications.

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 to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark green powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Water Solubility	Freely soluble
Absorbance (λ max)	Conforms

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