High-purity chemical reagents — GC-MS / HPLC verified — supplied for laboratory research use only.
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L-DOPA (Levodopa) — ≥99.52% Purity Research Reagent

Methylene Blue — ≥99.50% Purity Research Reagent

5.99 €

Methylene Blue — high-purity chemical reagent (CAS 61-73-4), GC-MS / HPLC verified to ≥99.50%. For laboratory research use only — not for human consumption, not a supplement, not for veterinary use.

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3D model of methylene blue, CAS 61-73-4, molecular formula C16H18ClN3S, molar mass 319.9 g/mol
Verified dataSource: PubChem (NIH)
Last verified:
⚗️ 2D skeletal formula

Methylene Blue

Methylene Blue — 2D chemical structure (CAS 61-73-4, formula C16H18ClN3S, molar mass 319.9 g/mol)
CAS 61-73-4 · C16H18ClN3S · 319.9 g/mol
🧪 Chemical data
CAS number
61-73-4
Molecular formula
C16H18ClN3S
Molar mass
319.9 g/mol
Nazwa IUPAC
[7-(dimethylamino)phenothiazin-3-ylidene]-dimethylazanium chloride
InChIKey
CXKWCBBOMKCUKX-UHFFFAOYSA-M
📡 Data sources

The data in this widget come from the following verified scientific sources:

  • PubChem — National Center for Biotechnology Information (NCBI/NIH), USA
  • ChEMBL — European Bioinformatics Institute (EMBL-EBI), UK
  • NIST WebBook — National Institute of Standards and Technology, USA

Data are cached locally for speed — the widget also works offline.

🔗 External identifiers
🔍 Report a data error

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Data from PubChem (NIH) — we check every report and update our cache.

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Data last verified: 2026-10-13 22:12 UTC. Live data: PubChem ↗

Description

Methylene Blue is a phenothiazinium salt and redox-active dye, supplied by Ladasten as a high-purity chemical reagent for laboratory research use only. Every batch is analysed by GC-MS / HPLC and released only when it meets the declared purity of ≥99.50% (CAS 61-73-4).

Specification

CAS number61-73-4
Molecular formulaC16H18ClN3S
Molecular weight319.85 g/mol
Purity (GC-MS / HPLC)≥99.50%
Physical formCrystalline solid
Net weight1000 mg
PackagingSealed aluminium foil bag
OriginSynthesised in a Polish laboratory

Research applications

  • Analytical reference standard for GC-MS / HPLC method development and validation
  • Reference and comparison material for in-vitro research
  • Chemical characterisation, identity confirmation and stability studies

Quality & verification

Each batch is synthesised in a Polish laboratory and released only after GC-MS / HPLC confirms the declared purity. A certificate of analysis is available on request. If an independent laboratory analysis shows purity below our declared specification, we refund the product and your documented testing costs — see our Rules & Policy. Share your own GC-MS / HPLC results and earn a bonus on your next order.

⚗️ Chemical reagent — laboratory research use only.

This product is a chemical reagent supplied strictly for laboratory and analytical research. It is not for human consumption, is not a dietary supplement, food, cosmetic or medicine, and is not for veterinary use. You must be 18 or older to purchase. The buyer is solely responsible for complying with all applicable laws. Manufactured and shipped from Poland. We do not ship to the USA, Israel or Russia.

From the Research Digest

What the primary literature says about Methylene Blue, with PMID and DOI citations.

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