hydroxyl radical

radical composed by one atom of oxygen and one atom of hydrogen
ChemicalSubstance type_of_chemical_entity Q427071
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hydroxyl radical

Summary

hydroxyl radical is a type of chemical entity[1]. It ranks in the top 5% of type_of_chemical_entity entities by monthly Wikipedia readership (208 views/month).[2]

Key Facts

  • hydroxyl radical's instance of is recorded as type of chemical entity[3].
  • hydroxyl radical's chemical structure is recorded as Hydroxyl radical.svg[4].
  • hydroxyl radical's follows is recorded as hydroxide ion[5].
  • hydroxyl radical's GND ID is recorded as 4191615-3[6].
  • hydroxyl radical's CAS Registry Number is recorded as 3352-57-6[7].
  • hydroxyl radical's canonical SMILES is recorded as [OH][8].
  • hydroxyl radical's InChI is recorded as InChI=1S/HO/h1H[9].
  • hydroxyl radical's InChIKey is recorded as TUJKJAMUKRIRHC-UHFFFAOYSA-N[10].
  • hydroxyl radical's chemical formula is recorded as HO[11].
  • hydroxyl radical's subclass of is recorded as reactive oxygen species[12].
  • hydroxyl radical's subclass of is recorded as diatomic molecule[13].
  • hydroxyl radical's subclass of is recorded as radical[14].
  • hydroxyl radical's Commons category is recorded as Hydroxyl radical[15].
  • hydroxyl radical's MeSH descriptor ID is recorded as D017665[16].
  • hydroxyl radical's ChEMBL ID is recorded as CHEMBL1689064[17].
  • hydroxyl radical's Freebase ID is recorded as /m/03bx0r7[18].
  • hydroxyl radical's ChemSpider ID is recorded as 138477[19].
  • hydroxyl radical's PubChem CID is recorded as 157350[20].
  • hydroxyl radical's KEGG ID is recorded as C16844[21].
  • hydroxyl radical's MeSH tree code is recorded as D01.045.250.357[22].
  • hydroxyl radical's MeSH tree code is recorded as D01.248.497.158.459.300[23].
  • hydroxyl radical's MeSH tree code is recorded as D01.339.431.249[24].
  • hydroxyl radical's ChEBI ID is recorded as 29191[25].
  • hydroxyl radical's described by source is recorded as Great Soviet Encyclopedia (1926–1947)[26].
  • hydroxyl radical's Gmelin number is recorded as 105[27].

Why It Matters

hydroxyl radical ranks in the top 5% of type_of_chemical_entity entities by monthly Wikipedia readership (208 views/month).[2] It has Wikipedia articles in 15 language editions, a strong signal of global cultural recognition.[28] It is known by 11 alternative names across languages and contexts.[29]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . CAS Common Chemistry. Retrieved . commonchemistry.cas.org. Provenance: wikidata.org.
  6. [8] . PubChem. Retrieved . wikidata.org.
  7. [9] . PubChem. Retrieved . wikidata.org.
  8. [10] . PubChem. Retrieved . wikidata.org.
  9. [11] . PubChem. Retrieved . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . goldbook.iupac.org. goldbook.iupac.org. Provenance: wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . ChEMBL. Retrieved . wikidata.org.
  16. [18] . Freebase Data Dumps. wikidata.org.
  17. [19] . Q2311683. Retrieved . wikidata.org.
  18. [20] . PubChem. Retrieved . wikidata.org.
  19. [21] . Kyoto Encyclopedia of Genes and Genomes. wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . ChEMBL. Retrieved . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] . Wikidata sitelinks. wikidata.org.
  3. [29] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). hydroxyl radical. Retrieved May 3, 2026, from https://4ort.xyz/entity/hydroxyl-radical
MLA “hydroxyl radical.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hydroxyl-radical.
BibTeX @misc{4ortxyz_hydroxyl-radical_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{hydroxyl radical}}, year = {2026}, url = {https://4ort.xyz/entity/hydroxyl-radical}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): hydroxyl radical — https://4ort.xyz/entity/hydroxyl-radical (retrieved 2026-05-03)

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