oxalic anhydride

chemical compound
ChemicalSubstance type_of_chemical_entity Q912268
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oxalic anhydride

Summary

oxalic anhydride is a type of chemical entity[1]. It ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (15 views/month).[2]

Key Facts

  • oxalic anhydride's instance of is recorded as type of chemical entity[3].
  • oxalic anhydride's chemical structure is recorded as Oxalic-anhydride-2D-skeletal.png[4].
  • oxalic anhydride's CAS Registry Number is recorded as 308818-63-5[5].
  • oxalic anhydride's canonical SMILES is recorded as C1(=O)C(=O)O1[6].
  • oxalic anhydride's InChI is recorded as InChI=1S/C2O3/c3-1-2(4)5-1[7].
  • oxalic anhydride's InChIKey is recorded as PFPYHYZFFJJQFD-UHFFFAOYSA-N[8].
  • oxalic anhydride's chemical formula is recorded as C₂O₃[9].
  • oxalic anhydride's subclass of is recorded as diketone[10].
  • oxalic anhydride's subclass of is recorded as epoxide[11].
  • oxalic anhydride's subclass of is recorded as carboxylic anhydride[12].
  • oxalic anhydride's subclass of is recorded as oxocarbon[13].
  • oxalic anhydride's subclass of is recorded as hypothetical chemical compound[14].
  • oxalic anhydride's Commons category is recorded as Oxalic anhydride[15].
  • oxalic anhydride's Freebase ID is recorded as /m/05pcrct[16].
  • oxalic anhydride's ChemSpider ID is recorded as 13693079[17].
  • oxalic anhydride's PubChem CID is recorded as 23297885[18].
  • oxalic anhydride's mass is recorded as {'unit': 'Q483261', 'amount': '+71.984744'}[19].
  • oxalic anhydride's Nikkaji ID is recorded as J56.071E[20].
  • oxalic anhydride's SureChEMBL ID is recorded as 308325[21].
  • oxalic anhydride's DSSTox substance ID is recorded as DTXSID00632683[22].
  • oxalic anhydride's Microsoft Academic ID is recorded as 2780768785[23].
  • oxalic anhydride's J-GLOBAL ID is recorded as 200907030942004369[24].
  • oxalic anhydride's DSSTOX compound identifier is recorded as DTXCID10583435[25].
  • oxalic anhydride's UniChem compound ID is recorded as 26971010[26].

Why It Matters

oxalic anhydride ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (15 views/month).[2] It has Wikipedia articles in 8 language editions, a strong signal of global cultural recognition.[27] It is known by 7 alternative names across languages and contexts.[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] . CAS Common Chemistry. Retrieved . commonchemistry.cas.org. Provenance: wikidata.org.
  4. [6] . PubChem. Retrieved . wikidata.org.
  5. [7] . PubChem. Retrieved . wikidata.org.
  6. [8] . PubChem. Retrieved . wikidata.org.
  7. [9] . PubChem. Retrieved . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . Freebase Data Dumps. wikidata.org.
  15. [17] . Q2311683. Retrieved . wikidata.org.
  16. [18] . PubChem. Retrieved . wikidata.org.
  17. [19] . PubChem. Retrieved . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . Mapping file of InChIStrings, InChIKeys and DTXSIDs for the EPA CompTox Dashboard. wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . UniChem. wikidata.org.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [27] . Wikidata sitelinks. wikidata.org.
  3. [28] . 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). oxalic anhydride. Retrieved May 3, 2026, from https://4ort.xyz/entity/oxalic-anhydride
MLA “oxalic anhydride.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/oxalic-anhydride.
BibTeX @misc{4ortxyz_oxalic-anhydride_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{oxalic anhydride}}, year = {2026}, url = {https://4ort.xyz/entity/oxalic-anhydride}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): oxalic anhydride — https://4ort.xyz/entity/oxalic-anhydride (retrieved 2026-05-03)

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