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18-crown-6

chemical compound
ChemicalSubstance type_of_chemical_entity Q3238432
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18-crown-6

Summary

18-crown-6 is a type of chemical entity[1]. 18-crown-6 ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (43 views/month).[2]

Key Facts

  • 18-crown-6's instance of is recorded as type of chemical entity[3].
  • 18-crown-6's chemical structure is recorded as 1,4,7,10,13,16-hexaoxacyclooctadecane 200.svg[4].
  • 18-crown-6's CAS Registry Number is recorded as 17455-13-9[5].
  • 18-crown-6's EC number is recorded as 241-473-5[6].
  • 18-crown-6's canonical SMILES is recorded as C1COCCOCCOCCOCCOCCO1[7].
  • 18-crown-6's InChI is recorded as InChI=1S/C12H24O6/c1-2-14-5-6-16-9-10-18-12-11-17-8-7-15-4-3-13-1/h1-12H2[8].
  • 18-crown-6's InChIKey is recorded as XEZNGIUYQVAUSS-UHFFFAOYSA-N[9].
  • 18-crown-6's chemical formula is recorded as C₁₂H₂₄O₆[10].
  • 18-crown-6's subclass of is recorded as crown ether[11].
  • 18-crown-6's Commons category is recorded as 18-crown-6[12].
  • 18-crown-6's has part is recorded as oxygen[13].
  • 18-crown-6's has part is recorded as carbon[14].
  • 18-crown-6's has part is recorded as hydrogen[15].
  • 18-crown-6's ChEMBL ID is recorded as CHEMBL155204[16].
  • 18-crown-6's PDB structure ID is recorded as 3WUR[17].
  • 18-crown-6's PDB structure ID is recorded as 4BEI[18].
  • 18-crown-6's PDB structure ID is recorded as 4XZW[19].
  • 18-crown-6's PDB structure ID is recorded as 3WH0[20].
  • 18-crown-6's PDB structure ID is recorded as 3WHM[21].
  • 18-crown-6's Freebase ID is recorded as /m/08x17b[22].
  • 18-crown-6's UNII is recorded as 63J177NC5B[23].
  • 18-crown-6's RTECS number is recorded as MP4500000[24].
  • 18-crown-6's ChemSpider ID is recorded as 26563[25].
  • 18-crown-6's PubChem CID is recorded as 28557[26].
  • 18-crown-6's ChEBI ID is recorded as 32397[27].

Why It Matters

18-crown-6 ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (43 views/month).[2] 18-crown-6 has Wikipedia articles in 17 language editions, a strong signal of global cultural recognition.[28] 18-crown-6 is known by 9 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] ↑ . ChEBI. 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] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . 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] ↑ . Freebase Data Dumps. wikidata.org.
  21. [23] ↑ . Global Substance Registration System. Retrieved . wikidata.org.
  22. [24] ↑ . wikidata.org.
  23. [25] ↑ . Q2311683. Retrieved . wikidata.org.
  24. [26] ↑ . PubChem. Retrieved . wikidata.org.
  25. [27] ↑ . ChEBI. 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). 18-crown-6. Retrieved May 3, 2026, from https://4ort.xyz/entity/18-crown-6
MLA “18-crown-6.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/18-crown-6.
BibTeX @misc{4ortxyz_18-crown-6_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{18-crown-6}}, year = {2026}, url = {https://4ort.xyz/entity/18-crown-6}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 18-crown-6 — https://4ort.xyz/entity/18-crown-6 (retrieved 2026-05-03)

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