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Peptide lexicon

Methylenblau

Phenothiazine dye and redox cycler that can transfer electrons in the mitochondrial respiratory chain.

Substance classSmall Molecule
CAS number61-73-4
Molecular formulaC₁₆H₁₈ClN₃S
Molar mass319.9 g/mol
SynonymsMethylthioniniumchlorid, CI 52015
PubChemCID 6099

Structure

Methylene blue (methylthioninium chloride, C₁₆H₁₈ClN₃S) switches between the oxidised blue form and reduced, colourless leucomethylene blue. This redox behaviour makes it a classic laboratory dye and electron carrier.

State of research

Research covers electron transfer that bypasses complexes I–IV, oxygen utilisation, monoamine oxidase inhibition and models of neurodegenerative disease; in microscopy it is used as a stain.

Status

Methylene blue is approved as a medicinal substance for specific indications. The material offered here is a research reagent.

Literature

  1. Methylene blue in sepsis and septic shock: a systematic review and meta-analysisFront Med (Lausanne), 2024 · PMID 38698779 · DOI 10.3389/fmed.2024.1366062
  2. Methylene Blue in Septic Shock: A Systematic Review and Meta-AnalysisCrit Care Explor, 2024 · PMID 38904978 · DOI 10.1097/CCE.0000000000001110
  3. Methylene Blue: An Antidote for Methemoglobinemia and BeyondPediatr Emerg Care, 2021 · PMID 34463662 · DOI 10.1097/PEC.0000000000002526
  4. Vasoactive-Inotropic Score: Evolution, Clinical Utility, and PitfallsJ Cardiothorac Vasc Anesth, 2021 · PMID 33069558 · DOI 10.1053/j.jvca.2020.09.117
  5. Management of Refractory Anaphylaxis: An Overview of Current GuidelinesClin Exp Allergy, 2024 · PMID 38866583 · DOI 10.1111/cea.14514

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