phosphonic acid

chemical compound, tautomer of phosphorous acid
ChemicalSubstance type_of_chemical_entity Q64703485
Press Enter · cited answer in seconds

phosphonic acid

Summary

phosphonic acid is a type of chemical entity[1]. It ranks in the top 5% of type_of_chemical_entity entities by monthly Wikipedia readership (133 views/month).[2]

Key Facts

  • phosphonic acid's instance of is recorded as type of chemical entity[3].
  • phosphonic acid's chemical structure is recorded as Phosphonic-acid-2D-dimensions-vector.svg[4].
  • phosphonic acid's GND ID is recorded as 4519764-7[5].
  • phosphonic acid's CAS Registry Number is recorded as 13598-36-2[6].
  • phosphonic acid's EC number is recorded as 237-066-7[7].
  • phosphonic acid's canonical SMILES is recorded as OP(O)=O[8].
  • phosphonic acid's InChI is recorded as InChI=1S/H3O3P/c1-4(2)3/h4H,(H2,1,2,3)[9].
  • phosphonic acid's InChIKey is recorded as ABLZXFCXXLZCGV-UHFFFAOYSA-N[10].
  • phosphonic acid's Library of Congress authority ID is recorded as sh85101110[11].
  • phosphonic acid's chemical formula is recorded as H₃PO₃[12].
  • phosphonic acid's subclass of is recorded as inorganic phosphorus oxoacid[13].
  • phosphonic acid's Commons category is recorded as Phosphonic acid[14].
  • phosphonic acid's color is recorded as white[15].
  • phosphonic acid's ChEMBL ID is recorded as CHEMBL1235291[16].
  • phosphonic acid's PDB structure ID is recorded as 2I1V[17].
  • phosphonic acid's PDB structure ID is recorded as 4D4K[18].
  • phosphonic acid's PDB structure ID is recorded as 4D4L[19].
  • phosphonic acid's PDB structure ID is recorded as 4D4M[20].
  • phosphonic acid's PDB structure ID is recorded as 3QPV[21].
  • phosphonic acid's PDB structure ID is recorded as 5AK0[22].
  • phosphonic acid's PDB structure ID is recorded as 5AJW[23].
  • phosphonic acid's PDB structure ID is recorded as 5AJX[24].
  • phosphonic acid's PDB structure ID is recorded as 1NXP[25].
  • phosphonic acid's PDB structure ID is recorded as 5AJY[26].
  • phosphonic acid's PDB structure ID is recorded as 5AJZ[27].

Why It Matters

phosphonic acid ranks in the top 5% of type_of_chemical_entity entities by monthly Wikipedia readership (133 views/month).[2] It has Wikipedia articles in 23 language editions, a strong signal of global cultural recognition.[28] It is known by 3 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] . CRC Handbook of Chemistry and Physics (97th edition). wikidata.org.
  5. [7] . Global Substance Registration System. Retrieved . wikidata.org.
  6. [8] . ChEBI. Retrieved . wikidata.org.
  7. [9] . ChEBI. Retrieved . wikidata.org.
  8. [10] . ChEBI. Retrieved . wikidata.org.
  9. [11] . Integrated Authority File. wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . CRC Handbook of Chemistry and Physics (97th edition). wikidata.org.
  14. [16] . ChEMBL. Retrieved . wikidata.org.
  15. [17] . Protein Data Bank. Retrieved . wikidata.org.
  16. [18] . Protein Data Bank. Retrieved . wikidata.org.
  17. [19] . Protein Data Bank. Retrieved . wikidata.org.
  18. [20] . Protein Data Bank. Retrieved . wikidata.org.
  19. [21] . Protein Data Bank. Retrieved . wikidata.org.
  20. [22] . Protein Data Bank. Retrieved . wikidata.org.
  21. [23] . Protein Data Bank. Retrieved . wikidata.org.
  22. [24] . Protein Data Bank. Retrieved . wikidata.org.
  23. [25] . Protein Data Bank. Retrieved . wikidata.org.
  24. [26] . Protein Data Bank. Retrieved . wikidata.org.
  25. [27] . Protein Data Bank. Retrieved . 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). phosphonic acid. Retrieved May 3, 2026, from https://4ort.xyz/entity/phosphonic-acid
MLA “phosphonic acid.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/phosphonic-acid.
BibTeX @misc{4ortxyz_phosphonic-acid_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{phosphonic acid}}, year = {2026}, url = {https://4ort.xyz/entity/phosphonic-acid}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): phosphonic acid — https://4ort.xyz/entity/phosphonic-acid (retrieved 2026-05-03)

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