Description

Methylene Green is a synthetic organic dye belonging to the phenothiazine class, widely recognized for its role as a redox indicator and biological stain. Its primary commercial value lies in its high purity and consistent performance, which are critical for sensitive analytical and research applications. This product is essential for professionals in the life sciences, industrial quality control, and chemical synthesis sectors who require a reliable and well-characterized reagent.

Application

• Redox Indicator in Analytical Chemistry: Used in titrimetric analyses to detect the endpoint in redox reactions due to its distinct color change.
• Biological Staining: Employed in microscopy for staining cellular components, particularly in bacteriology and histology studies.
• Electrochemical Research: Serves as a mediator or probe in studies of electron transfer processes and biosensor development.
• Textile Dyeing Intermediate: Acts as a precursor or intermediate in the synthesis of specialized dyes for technical textiles.
• Photographic Sensitizer: Used in certain photographic and imaging processes for its light-absorbing properties.
• Research & Development: A key reagent in chemical synthesis and material science research for developing new compounds and functional materials.

Basic Information

Product Name	Methylene Green
CAS No.	2679-01-8
Molecular Formula	C16H17ClN4O4S
Molecular Weight	396.85 g/mol
Synonyms	Basic Green 5; C.I. 52020; 7-Dimethylamino-3-imino-3H-phenothiazine hydrochloride; Methylene Green ZnCl2 double salt; Methylene Green N-oxide; 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride; Aizen Methylene Green; Methylene Green chloride
EINECS	220-237-1

Quality Control

Our Methylene Green is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including identity confirmation by IR spectroscopy, purity assessment by HPLC, and verification of physical properties. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to ensure full traceability and compliance with your specifications.

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). Keep away from incompatible materials. The product is light-sensitive and should be stored away from light.

Specification

Item	Specification
Appearance	Dark green to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0 %
Residue on Ignition	≤ 0.5 %
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.