NorrChemica

Methylene Blue Trihydrate Powder | ≥99.5% Purity | 3rd-Party Tested | CAS 7220-79-3 | EU-Based Supplier

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🧪 Technical Specifications

CAS Number: 7220-79-3
SMILES: O.O.O.[Cl-].CN(C)C1=CC2=[S+]C3=CC(=CC=C3N=C2C=C1)N(C)C
InChI: InChI=1S/C16H18N3S.ClH.3H2O/c1-18(2)11-5-7-13-15(9-11)20-16-10-12(19(3)4)6-8-14(16)17-13;;;;/h5-10H,1-4H3;1H;3*1H2/q+1;;;;/p-1
InChIKey: XQAXGZLFSSPBMK-UHFFFAOYSA-M
Molecular Formula: C16H18ClN3S · 3H2O
Molecular Weight: 373.9 g/mol
Purity: >99.5%
Physical Form: Dark green crystalline powder
HS Code: 3204.13
Country of Origin: Finland
Shelf Life: >36 months (Under proper storage conditions)
Storage Conditions: Store at room temperature (15-25°C), protected from light and moisture
SDS / CoA: 📄 Download PDF

🔬 Common Scientific Applications

🔁 Redox indicator & mediator: Visible redox shifts in titrations; electron-shuttle in electrochemistry and catalysis assays.

🧫 Staining dye (microbiology/cytology): Contrast agent for cells, nuclei, and microorganisms in basic light microscopy.

📊 Spectrophotometric standard: Strong absorbance in the red (~660–668 nm); handy for instrument/calibration checks.

🌊 Tracer studies: Dye tracer for flow visualization, mixing tests, and permeability assays.

🔦 Photochemistry/photosensitizer: Model compound in photodynamic/ROS generation studies under red-light excitation.

🧪 Kinetics & mechanism probes: Follows redox-driven reaction progress; monitors electron-transfer pathways in test systems.

🧷 Materials & thin films: Doping/colorant in polymer/sol–gel films to study charge transport and optical response.

🧯 Decontamination/oxidation tests: Surrogate target in advanced oxidation (e.g., Fenton, photocatalysis) for process benchmarking.

⚠️ Safety & Transport

Hazard Class (UN/DG): Not Regulated for Transport (Non-DG)
GHS Signal Word: Warning
GHS Hazard Statements: H302: Harmful if swallowed
GHS Precautionary Statements: P264: Wash skin thoroughly after handling. P270: Do not eat, drink or smoke when using this product.
Dangerous Goods Notes: None

🔎 Advanced Identifiers

PubChem CID: 104827

Our ultra-high purity thiazine dye (Methylthioninium chloride) has been verified as 99.59% pure via 1H qNMR analysis (Latvian Institute of Organic Chemistry, Riga)