Description

Methylene Blue is a heterocyclic aromatic chemical compound and a vital synthetic dye belonging to the phenothiazine class. It serves as a versatile redox indicator, biological stain, and therapeutic agent, valued for its distinctive blue color and electron-transfer properties. This product is essential for manufacturers and researchers in the pharmaceutical, diagnostic, biotechnology, and industrial dye sectors.

Application

• Pharmaceutical & Medical Applications: Used as an antidote for methemoglobinemia, in surgical staining, and as a component in certain antimicrobial and antimalarial research formulations.
• Biological Staining & Microscopy: A fundamental stain in histology and cytology for highlighting cell nuclei, nerve tissues, and microorganisms in Gram staining procedures.
• Diagnostic Reagents: Key component in diagnostic test kits and as a redox indicator in bacteriological and biochemical media.
• Industrial Dye: Employed in the textile industry for dyeing cotton, silk, and paper, and as a colorant for inks and other specialty products.
• Aquaculture & Aquarium Use: Utilized as a treatment for fungal and parasitic infections in fish and fish eggs.
• Chemical Indicator & Research: Serves as an oxidation-reduction (redox) indicator in analytical chemistry and various scientific research protocols.

Basic Information

Product Name	Methylene Blue
CAS No.	61-73-4
Molecular Formula	C16H18ClN3S
Molecular Weight	319.85 g/mol
Synonyms	Methylthioninium Chloride; Basic Blue 9; CI 52015; Swiss Blue; Urolene Blue; Methylenum Caeruleum; 3,7-Bis(Dimethylamino)phenothiazin-5-ium Chloride; Tetramethylthionine Chloride
EINECS	200-515-2

Quality Control

Our Methylene Blue is produced under a stringent quality management system. We offer various grades, including Technical, USP, and EP, each meeting specific purity and performance criteria. Every batch is tested for identity, assay, impurity profile, and other critical parameters. A comprehensive Certificate of Analysis (COA) is provided to ensure traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials and strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark green crystalline powder with bronze luster
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Sulfated Ash	≤ 0.1%
Heavy Metals	≤ 20 ppm
Zinc	≤ 50 ppm

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