melatonin

hormone primarily released by the pineal gland
ChemicalSubstance type_of_chemical_entity Q180912
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melatonin

Summary

melatonin is a type of chemical entity[1]. melatonin ranks in the top 1% of type_of_chemical_entity entities by monthly Wikipedia readership (1,164 views/month).[2]

Key Facts

  • melatonin's instance of is recorded as type of chemical entity[3].
  • melatonin's chemical structure is recorded as Melatonin2.svg[4].
  • melatonin's chemical structure is recorded as Melatonin.svg[5].
  • melatonin's physically interacts with is recorded as 5-hydroxytryptamine receptor 2B[6].
  • melatonin's physically interacts with is recorded as Melatonin receptor 1A[7].
  • melatonin's physically interacts with is recorded as Melatonin receptor 1B[8].
  • melatonin's physically interacts with is recorded as Melatonin receptor 1B[9].
  • melatonin's physically interacts with is recorded as Melatonin receptor 1A[10].
  • melatonin's GND ID is recorded as 4038525-5[11].
  • melatonin's CAS Registry Number is recorded as 73-31-4[12].
  • melatonin's CAS Registry Number is recorded as 8041-44-9[13].
  • melatonin's EC number is recorded as 200-797-7[14].
  • melatonin's canonical SMILES is recorded as CC(=O)NCCC1=CNC2=C1C=C(C=C2)OC[15].
  • melatonin's InChI is recorded as InChI=1S/C13H16N2O2/c1-9(16)14-6-5-10-8-15-13-4-3-11(17-2)7-12(10)13/h3-4,7-8,15H,5-6H2,1-2H3,(H,14,16)[16].
  • melatonin's InChIKey is recorded as DRLFMBDRBRZALE-UHFFFAOYSA-N[17].
  • melatonin's Library of Congress authority ID is recorded as sh85083394[18].
  • melatonin's ATC code is recorded as N05CH01[19].
  • melatonin's Bibliothèque nationale de France ID is recorded as 120121530[20].
  • melatonin's chemical formula is recorded as C₁₃H₁₆N₂O₂[21].
  • melatonin's subclass of is recorded as tryptamines[22].
  • melatonin's subclass of is recorded as hormone[23].
  • melatonin's NDL Authority ID is recorded as 00953147[24].
  • melatonin's part of is recorded as melatonin receptor activity[25].
  • melatonin's part of is recorded as melatonin binding[26].
  • melatonin's part of is recorded as melatonin biosynthetic process[27].

Body

Works and Contributions

Things named for melatonin include Melatonin[28], a video game[29].

Why It Matters

melatonin ranks in the top 1% of type_of_chemical_entity entities by monthly Wikipedia readership (1,164 views/month).[2] melatonin has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[30] melatonin is known by 50 alternative names across languages and contexts.[31]

Entities named for melatonin include Melatonin[28], a video game[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] . IUPHAR/BPS Guide to PHARMACOLOGY. Retrieved . wikidata.org.
  5. [7] . IUPHAR/BPS Guide to PHARMACOLOGY. Retrieved . wikidata.org.
  6. [8] . IUPHAR/BPS Guide to PHARMACOLOGY. Retrieved . wikidata.org.
  7. [9] . Open Targets Platform. Retrieved . platform.opentargets.org. Provenance: wikidata.org.
  8. [10] . Open Targets Platform. Retrieved . platform.opentargets.org. Provenance: wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . Global Substance Registration System. Retrieved . commonchemistry.cas.org. Provenance: wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . Global Substance Registration System. Retrieved . wikidata.org.
  13. [15] . PubChem. Retrieved . wikidata.org.
  14. [16] . PubChem. Retrieved . wikidata.org.
  15. [17] . PubChem. Retrieved . wikidata.org.
  16. [18] . Nuovo soggettario. Retrieved . thes.bncf.firenze.sbn.it. Provenance: wikidata.org.
  17. [19] . DrugBank. wikidata.org.
  18. [20] . Nuovo soggettario. Retrieved . thes.bncf.firenze.sbn.it. Provenance: wikidata.org.
  19. [21] . PubChem. Retrieved . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . Foundational Model of Anatomy. Retrieved . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . Gene Ontology release 2019-11-16. wikidata.org.
  24. [26] . Gene Ontology release 2019-11-16. wikidata.org.
  25. [27] . Gene Ontology release 2020-05-02. wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [28] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [29] . Wikidata. wikidata.org. → on this site

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [30] . Wikidata sitelinks. wikidata.org.
  3. [31] . 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). melatonin. Retrieved May 3, 2026, from https://4ort.xyz/entity/melatonin
MLA “melatonin.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/melatonin.
BibTeX @misc{4ortxyz_melatonin_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{melatonin}}, year = {2026}, url = {https://4ort.xyz/entity/melatonin}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): melatonin — https://4ort.xyz/entity/melatonin (retrieved 2026-05-03)

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