Description

5-[(4-Ethylamino-5-Methyl-2-Sulfonatophenyl)Amino]-9-Diethylamino-7-(2,6-Dimethyl-3-Sodiosulfophenyl)Benzo[A]Phenazin-7-Ium is a high-purity, water-soluble cationic phenazinium dye salt, valued for its intense color and specific chemical reactivity. This compound is critical for applications requiring precise color formation, stable chromophore properties, and compatibility with aqueous systems. It is primarily sought by manufacturers in the specialty dyes, biological staining, and analytical chemistry sectors for its reliable performance.

Application

• Biological Staining Agent: Used as a vital stain in microscopy for visualizing cellular structures, including nucleic acids and specific organelles.
• Specialty Dye Intermediate: Serves as a key precursor in the synthesis of complex cationic dyes for textiles, leather, and paper.
• Analytical Chemistry Reagent: Employed in colorimetric assays and as a redox indicator in titration experiments due to its distinct color change properties.
• Laser Dye & Photographic Sensitizer: Utilized in the formulation of tunable dye lasers and as a spectral sensitizer in photographic emulsions.
• pH and Redox Indicator: Functions as a sensitive visual indicator for determining pH ranges or oxidation-reduction potential in chemical processes.
• Research & Development: A valuable tool in academic and industrial R&D for photochemical studies, sensor development, and material science.

Basic Information

Product Name	5-[(4-Ethylamino-5-Methyl-2-Sulfonatophenyl)Amino]-9-Diethylamino-7-(2,6-Dimethyl-3-Sodiosulfophenyl)Benzo[A]Phenazin-7-Ium
CAS No.	6378-87-6
Molecular Formula	C34H38N5O6S2Na
Molecular Weight	699.81 g/mol
Synonyms	Janus Green B; Diazin Green S; Union Green B; Janus Green; 3-Diethylamino-7-[[4-(ethylamino)-5-methyl-2-sulfophenyl]azo]-5-phenylphenazinium sulfate sodium salt; Diazine Green S; C.I. 11050
EINECS	228-968-6

Quality Control

Our production of Janus Green B (CAS 6378-87-6) adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed for identity, strength, and impurity profile. Certificates of Analysis (COA) documenting key parameters such as assay, absorbance, and heavy metal content are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark green to black powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0 %
Absorbance (λ max)	Conforms
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, green solution

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