Description

Methylthioninium Chloride is a vital organic salt with significant utility across several high-value industries. Its unique redox properties and intense coloration make it indispensable for both analytical and therapeutic applications. This compound is essential for manufacturers and researchers in the pharmaceutical, diagnostic, and chemical synthesis sectors seeking a reliable, high-purity reagent.

Application

• Pharmaceutical Active Ingredient: Used in the formulation of specific medicinal products, most notably as an antidote for methemoglobinemia.
• Biological Staining: Serves as a critical stain in microbiology and histology for visualizing cellular structures and tissues.
• Diagnostic Reagent: Employed in clinical and veterinary diagnostic kits as a key chemical component for specific test protocols.
• Chemical Synthesis Intermediate: Acts as a precursor or catalyst in the synthesis of more complex organic molecules and dyes.
• Research & Development: Utilized in biochemical and pharmacological research laboratories as a model compound for studying redox processes.
• Industrial Dye Applications: Functions as a colorant in specialized industrial processes where its specific hue is required.

Basic Information

Product Name	Methylthioninium Chloride
CAS No.	105504-42-5
Molecular Formula	C16H18ClN3S
Molecular Weight	319.85 g/mol
Synonyms	Methylene Blue; Methylthionine Chloride; Basic Blue 9; CI 52015; Swiss Blue; Urolene Blue; Methylenum Caeruleum; Tetramethylthionine Chloride
EINECS	Contact for details

Quality Control

Our Methylthioninium Chloride is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets stringent specifications for identity, purity, and impurity profiles. Certificates of Analysis (COA) documenting results for assay, related substances, residual solvents, and other critical parameters are available upon request. We can supply material compliant with various pharmacopeial standards (e.g., USP, EP, BP) based on customer requirements.

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). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and away from direct light exposure to maintain stability and purity.

Specification

Item	Specification
Appearance	Dark green powder or crystals with a bronze luster
Identification (IR)	Conforms to standard
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0% (on anhydrous basis)
Water (KF Titration)	≤ 2.0 %
Residue on Ignition	≤ 0.1 %
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%

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