theanine

unstable amino-acid present in the tea
ChemicalSubstance type_of_chemical_entity Q909931
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theanine

Summary

theanine is a type of chemical entity[1]. theanine ranks in the top 2% of type_of_chemical_entity entities by monthly Wikipedia readership (2,331 views/month).[2]

Key Facts

  • theanine's instance of is recorded as type of chemical entity[3].
  • theanine's canonical SMILES is recorded as CCNC(=O)CCC(C(=O)O)N[4].
  • theanine's chemical formula is recorded as C₇H₁₄N₂O₃[5].
  • theanine is a type of 2-Azaniumyl-5-(ethylamino)-5-oxopentanoate[6].
  • theanine is used for nootropic[7].
  • theanine's Commons category is recorded as Theanine[8].
  • theanine's found in taxon is recorded as Camellia sinensis[9].
  • theanine's found in taxon is recorded as Camellia japonica[10].
  • theanine's found in taxon is recorded as Camellia oleifera[11].
  • theanine's found in taxon is recorded as Camellia sasanqua[12].
  • theanine's found in taxon is recorded as Eurya japonica[13].
  • theanine's found in taxon is recorded as Cleyera japonica[14].
  • theanine's found in taxon is recorded as Ternstroemia gymnanthera[15].
  • theanine's found in taxon is recorded as Trypanosoma brucei[16].
  • theanine's found in taxon is recorded as Phaseolus vulgaris[17].
  • theanine's NCI Thesaurus ID is recorded as C87348[18].
  • theanine's isomeric SMILES is recorded as CCNC(=O)CCC@HC(O)=OC@HC(O)=O">[19].
  • theanine's mass is recorded as {'unit': 'Q483261', 'amount': '+174.100442308'}[20].
  • theanine's melting point is recorded as {'unit': 'Q25267', 'amount': '+174.2'}[21].
  • theanine's boiling point is recorded as {'unit': 'Q25267', 'amount': '+215'}[22].
  • theanine's decomposition point is recorded as {'unit': 'Q25267', 'amount': '+217.5'}[23].
  • theanine's subject has role is recorded as nootropic[24].
  • theanine's stereoisomer of is recorded as N(5)-ethyl-L-glutamine zwitterion[25].
  • theanine's stereoisomer of is recorded as D-THEANINE[26].
  • theanine's pregnancy category is recorded as US pregnancy category A[27].

Why It Matters

theanine ranks in the top 2% of type_of_chemical_entity entities by monthly Wikipedia readership (2,331 views/month).[2] theanine has Wikipedia articles in 16 language editions, a strong signal of global cultural recognition.[28] theanine is known by 14 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] . PubChem. wikidata.org.
  3. [5] . PubChem. wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . menshealth.com. Retrieved . menshealth.com. Provenance: wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . Application of capillary electrophoresis to tea quality estimation. wikidata.org.
  8. [10] . Occurrence of theanine in Camellia japonica and Camellia sasanqua seedlings.. wikidata.org.
  9. [11] . Occurrence of theanine in Camellia japonica and Camellia sasanqua seedlings.. wikidata.org.
  10. [12] . Occurrence of theanine in Camellia japonica and Camellia sasanqua seedlings.. wikidata.org.
  11. [13] . Occurrence of theanine in Camellia japonica and Camellia sasanqua seedlings.. wikidata.org.
  12. [14] . Occurrence of theanine in Camellia japonica and Camellia sasanqua seedlings.. wikidata.org.
  13. [15] . Occurrence of theanine in Camellia japonica and Camellia sasanqua seedlings.. wikidata.org.
  14. [16] . Untargeted metabolomics reveals a lack of synergy between nifurtimox and eflornithine against Trypanosoma brucei. wikidata.org.
  15. [17] . Theanine and Caffeine Content of Infusions Prepared from Commercial Tea Samples. wikidata.org.
  16. [18] . Global Substance Registration System. Retrieved . wikidata.org.
  17. [19] . Global Substance Registration System. Retrieved . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . commonchemistry.cas.org. commonchemistry.cas.org. Provenance: wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . 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). theanine. Retrieved May 3, 2026, from https://4ort.xyz/entity/theanine
MLA “theanine.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/theanine.
BibTeX @misc{4ortxyz_theanine_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{theanine}}, year = {2026}, url = {https://4ort.xyz/entity/theanine}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): theanine — https://4ort.xyz/entity/theanine (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/theanine · Last refreshed:

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. 2d ago · Twofivesixbot bot · 2026-05-21 view diff on Wikidata ↗
    Found in taxon Camellia sinensis, Camellia japonica, Camellia oleifera +6
    Tautomer of N(5)-ethyl-L-glutamine zwitterion
    Instance of
    Subclass of 2-Azaniumyl-5-(ethylamino)-5-oxopentanoate
    + 11 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|7 */ [[Property:P2347]]: 24305, mv to monolingual text names on YSO statements"
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