protocatechualdehyde

chemical compound
ChemicalSubstance type_of_chemical_entity Q411602
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protocatechualdehyde

Summary

protocatechualdehyde is a type of chemical entity[1]. protocatechualdehyde ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (3 views/month).[2]

Key Facts

  • protocatechualdehyde's instance of is recorded as type of chemical entity[3].
  • protocatechualdehyde's chemical structure is recorded as Protocatechualdehyd.svg[4].
  • protocatechualdehyde's CAS Registry Number is recorded as 139-85-5[5].
  • protocatechualdehyde's EC number is recorded as 205-377-7[6].
  • protocatechualdehyde's canonical SMILES is recorded as C1=CC(=C(C=C1C=O)O)O[7].
  • protocatechualdehyde's InChI is recorded as InChI=1S/C7H6O3/c8-4-5-1-2-6(9)7(10)3-5/h1-4,9-10H[8].
  • protocatechualdehyde's InChIKey is recorded as IBGBGRVKPALMCQ-UHFFFAOYSA-N[9].
  • protocatechualdehyde's chemical formula is recorded as C₇H₆O₃[10].
  • protocatechualdehyde's subclass of is recorded as chemical compound[11].
  • protocatechualdehyde's Commons category is recorded as Protocatechuic aldehyde[12].
  • protocatechualdehyde's MeSH descriptor ID is recorded as C005581[13].
  • protocatechualdehyde's ChEMBL ID is recorded as CHEMBL222021[14].
  • protocatechualdehyde's Freebase ID is recorded as /m/0dr_l0j[15].
  • protocatechualdehyde's UNII is recorded as 4PVP2HCH4T[16].
  • protocatechualdehyde's ChemSpider ID is recorded as 8438[17].
  • protocatechualdehyde's PubChem CID is recorded as 8768[18].
  • protocatechualdehyde's KEGG ID is recorded as C16700[19].
  • protocatechualdehyde's ChEBI ID is recorded as 50205[20].
  • protocatechualdehyde's found in taxon is recorded as Populus simonii[21].
  • protocatechualdehyde's found in taxon is recorded as Populus ciliata[22].
  • protocatechualdehyde's found in taxon is recorded as Populus tristis[23].
  • protocatechualdehyde's found in taxon is recorded as Populus violascens[24].
  • protocatechualdehyde's found in taxon is recorded as Actaea racemosa[25].
  • protocatechualdehyde's found in taxon is recorded as Bletilla formosana[26].
  • protocatechualdehyde's found in taxon is recorded as Cryptotympana[27].

Why It Matters

protocatechualdehyde ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (3 views/month).[2] protocatechualdehyde has Wikipedia articles in 6 language editions, a strong signal of global cultural recognition.[28] protocatechualdehyde is known by 6 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] . 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] . Medical Subject Headings. Retrieved . wikidata.org.
  12. [14] . ChEMBL. Retrieved . wikidata.org.
  13. [15] . Freebase Data Dumps. wikidata.org.
  14. [16] . Global Substance Registration System. Retrieved . wikidata.org.
  15. [17] . Q2311683. Retrieved . wikidata.org.
  16. [18] . PubChem. Retrieved . wikidata.org.
  17. [19] . ChEBI. Retrieved . wikidata.org.
  18. [20] . ChEMBL. Retrieved . wikidata.org.
  19. [21] . Notes: Analysis of Phenolics of Bud Exudates of Populus simonii and Populus yunnanensis by GC-MS. wikidata.org.
  20. [22] . Analysis of phenolics of bud exudate of Populus ciliata by GC-MS. wikidata.org.
  21. [23] . Analysis of Phenolics of Bud Exudate of Populus tristis by GC/MS. wikidata.org.
  22. [24] . Notes: Analysis of Phenolics of Bud Exudate of Populus violascens by GC-MS. wikidata.org.
  23. [25] . Polyphenolic constituents of Actaea racemosa. wikidata.org.
  24. [26] . Dihydrophenanthrenes from Bletilla formosana. wikidata.org.
  25. [27] . Optically active N-acetyldopamine dimer of the crude drug "Zentai," the cast-off shell of the Cicada, Cryptotympana sp.. 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). protocatechualdehyde. Retrieved May 3, 2026, from https://4ort.xyz/entity/protocatechualdehyde
MLA “protocatechualdehyde.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/protocatechualdehyde.
BibTeX @misc{4ortxyz_protocatechualdehyde_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{protocatechualdehyde}}, year = {2026}, url = {https://4ort.xyz/entity/protocatechualdehyde}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): protocatechualdehyde — https://4ort.xyz/entity/protocatechualdehyde (retrieved 2026-05-03)

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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. 20d ago · KaleemBot bot · 2026-04-30 view diff on Wikidata ↗
    Subclass of chemical compound
    Found in taxon Populus simonii, Populus ciliata, Populus tristis +73
    Mass {'unit': 'Q483261', 'amount': '+138.032'}
    Instance of
    + 5 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:3,4-ڈائی ہائیڈروکسی بینز ایلڈیہائڈ]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.