L-cystine

chemical compound
ChemicalSubstance type_of_chemical_entity Q408626
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L-cystine

Summary

L-cystine is a type of chemical entity[1]. L-cystine ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (52 views/month).[2]

Key Facts

  • L-cystine's instance of is recorded as type of chemical entity[3].
  • L-cystine's chemical structure is recorded as Amminoacido cistina formula.svg[4].
  • L-cystine's CAS Registry Number is recorded as 56-89-3[5].
  • L-cystine's EC number is recorded as 200-296-3[6].
  • L-cystine's canonical SMILES is recorded as C(C(C(=O)O)N)SSCC(C(=O)O)N[7].
  • L-cystine's InChI is recorded as InChI=1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m0/s1[8].
  • L-cystine's InChIKey is recorded as LEVWYRKDKASIDU-IMJSIDKUSA-N[9].
  • L-cystine's chemical formula is recorded as C₆H₁₂N₂O₄S₂[10].
  • L-cystine's subclass of is recorded as DL-cystine[11].
  • L-cystine's part of is recorded as transmembrane L-cystine transport from lysosomal lumen to cytosol[12].
  • L-cystine's part of is recorded as L-cystine transmembrane transporter activity[13].
  • L-cystine's part of is recorded as L-cystine transport[14].
  • L-cystine's has use is recorded as medication[15].
  • L-cystine's Commons category is recorded as Cystine[16].
  • L-cystine's has part is recorded as nitrogen[17].
  • L-cystine's has part is recorded as sulfur[18].
  • L-cystine's has part is recorded as carbon[19].
  • L-cystine's ChEMBL ID is recorded as CHEMBL590540[20].
  • L-cystine's Guide to Pharmacology Ligand ID is recorded as 5413[21].
  • L-cystine's Freebase ID is recorded as /m/0q01m[22].
  • L-cystine's UNII is recorded as 48TCX9A1VT[23].
  • L-cystine's ChemSpider ID is recorded as 60997[24].
  • L-cystine's PubChem CID is recorded as 67678[25].
  • L-cystine's PubChem CID is recorded as 6992103[26].
  • L-cystine's KEGG ID is recorded as D03636[27].

Why It Matters

L-cystine ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (52 views/month).[2] L-cystine has Wikipedia articles in 20 language editions, a strong signal of global cultural recognition.[28] L-cystine is known by 15 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] . DrugBank. 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] . Gene Ontology release 2019-11-16. wikidata.org.
  11. [13] . Gene Ontology release 2019-11-16. wikidata.org.
  12. [14] . Gene Ontology release 2019-11-16. wikidata.org.
  13. [15] . DrugBank. wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . ChEMBL. Retrieved . wikidata.org.
  19. [21] . IUPHAR/BPS Guide to PHARMACOLOGY. Retrieved . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . DrugBank. Retrieved . wikidata.org.
  22. [24] . Q2311683. Retrieved . wikidata.org.
  23. [25] . PubChem. Retrieved . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . DrugBank. 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). L-cystine. Retrieved May 3, 2026, from https://4ort.xyz/entity/l-cystine
MLA “L-cystine.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/l-cystine.
BibTeX @misc{4ortxyz_l-cystine_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{L-cystine}}, year = {2026}, url = {https://4ort.xyz/entity/l-cystine}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): L-cystine — https://4ort.xyz/entity/l-cystine (retrieved 2026-05-03)

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