Methylphosphonic acid

chemical compound
ChemicalSubstance type_of_chemical_entity Q15634110
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Methylphosphonic acid

Summary

Methylphosphonic acid is a type of chemical entity[1]. It ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (18 views/month).[2]

Key Facts

  • Methylphosphonic acid's instance of is recorded as type of chemical entity[3].
  • Methylphosphonic acid's chemical structure is recorded as Methylphosphonic acid.svg[4].
  • Methylphosphonic acid's CAS Registry Number is recorded as 993-13-5[5].
  • Methylphosphonic acid's EC number is recorded as 213-607-2[6].
  • Methylphosphonic acid's canonical SMILES is recorded as CP(=O)(O)O[7].
  • Methylphosphonic acid's InChI is recorded as InChI=1S/CH5O3P/c1-5(2,3)4/h1H3,(H2,2,3,4)[8].
  • Methylphosphonic acid's InChIKey is recorded as YACKEPLHDIMKIO-UHFFFAOYSA-N[9].
  • Methylphosphonic acid's chemical formula is recorded as CH₅O₃P[10].
  • Methylphosphonic acid's subclass of is recorded as organic phosphonate[11].
  • Methylphosphonic acid's Commons category is recorded as Methylphosphonic acid[12].
  • Methylphosphonic acid's ChEMBL ID is recorded as CHEMBL122938[13].
  • Methylphosphonic acid's PDB structure ID is recorded as 1CFJ[14].
  • Methylphosphonic acid's PDB structure ID is recorded as 2WG0[15].
  • Methylphosphonic acid's PDB structure ID is recorded as 2WG1[16].
  • Methylphosphonic acid's Freebase ID is recorded as /m/0zm_q2v[17].
  • Methylphosphonic acid's UNII is recorded as 329W4YM10Z[18].
  • Methylphosphonic acid's ChemSpider ID is recorded as 13220[19].
  • Methylphosphonic acid's PubChem CID is recorded as 13818[20].
  • Methylphosphonic acid's ChEBI ID is recorded as 45129[21].
  • Methylphosphonic acid's Gmelin number is recorded as 1868[22].
  • Methylphosphonic acid's Reaxys registry number is recorded as 1739372[23].
  • Methylphosphonic acid's Human Metabolome Database ID is recorded as HMDB0240714[24].
  • Methylphosphonic acid's HSDB ID is recorded as 6762[25].
  • Methylphosphonic acid's mass is recorded as {'unit': 'Q483261', 'amount': '+95.998'}[26].
  • Methylphosphonic acid's melting point is recorded as {'unit': 'Q25267', 'amount': '+105.0'}[27].

Why It Matters

Methylphosphonic acid ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (18 views/month).[2] It has Wikipedia articles in 8 language editions, a strong signal of global cultural recognition.[28]

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] . Global Substance Registration System. Retrieved . commonchemistry.cas.org. Provenance: wikidata.org.
  4. [6] . Global Substance Registration System. Retrieved . wikidata.org.
  5. [7] . PubChem. Retrieved . wikidata.org.
  6. [8] . PubChem. Retrieved . wikidata.org.
  7. [9] . PubChem. Retrieved . wikidata.org.
  8. [10] . PubChem. Retrieved . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . ChEMBL. Retrieved . wikidata.org.
  12. [14] . Protein Data Bank. Retrieved . wikidata.org.
  13. [15] . Protein Data Bank. Retrieved . wikidata.org.
  14. [16] . Protein Data Bank. Retrieved . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . Global Substance Registration System. Retrieved . wikidata.org.
  17. [19] . Q2311683. Retrieved . wikidata.org.
  18. [20] . PubChem. Retrieved . wikidata.org.
  19. [21] . ChEBI. Retrieved . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . ChEBI. Retrieved . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . Hazardous Substances Data Bank. Retrieved . wikidata.org.
  24. [26] . PubChem. Retrieved . wikidata.org.
  25. [27] . Jean-Claude Bradley Open Melting Point Dataset. 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.

📑 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). Methylphosphonic acid. Retrieved May 3, 2026, from https://4ort.xyz/entity/methylphosphonic-acid
MLA “Methylphosphonic acid.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/methylphosphonic-acid.
BibTeX @misc{4ortxyz_methylphosphonic-acid_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Methylphosphonic acid}}, year = {2026}, url = {https://4ort.xyz/entity/methylphosphonic-acid}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Methylphosphonic acid — https://4ort.xyz/entity/methylphosphonic-acid (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/methylphosphonic-acid · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 28d ago · Shuaib-bot bot · 2026-05-06 view diff on Wikidata ↗
    Mass {'unit': 'Q483261', 'amount': '+95.998'}
    Instance of type of chemical entity
    Aliases
    Subclass of
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */"
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