Word.ws English Dictionary

methylthioninium

methylthioninium noun: the heterocyclic cation 3,7-bis(dimethylamino)-phenothiazin-5-ium, which is the basis of methylene blue.

Noun

methylthioninium (uncountable)

  1. The heterocyclic cation 3,7-bis(dimethylamino)-phenothiazin-5-ium, which is the basis of methylene blue
    • Methylene blue (MB, methylthioninium chloride) is a phenothiazine that crosses the blood brain barrier and acts as a redox cycler.2014 February 20, Cliona Stack et al., “Methylene blue upregulates Nrf2/ARE genes and prevents tau-related neurotoxicity”, in Human Molecular Genetics, volume 23, →DOI

Origin of methylthioninium

From methyl + thionine + -ium (“quaternary ammonium compound”).

Words formed from methylthioninium

Questions about methylthioninium

What does methylthioninium mean?
Methylthioninium means the heterocyclic cation 3,7-bis(dimethylamino)-phenothiazin-5-ium, which is the basis of methylene blue.
What part of speech is methylthioninium?
Methylthioninium is a noun.

Words near methylthioninium in the dictionary

  1. methyltetrahydrofolates
  2. methylthio
  3. methylthiobutylglucosinolate
  4. methylthiolation
  5. methylthiolations
  6. methylthioninium
  7. methylthioninium chloride
  8. methylthios
  9. methylthiotransferase
  10. methylthiotransferases
  11. methylthiouracil

Source and license

Adapted from Wiktionary: methylthioninium (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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