Congo red

chemical compound
ChemicalSubstance type_of_chemical_entity Q114391
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Congo red

Summary

Congo red is a type of chemical entity[1]. It ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (29 views/month).[2]

Key Facts

  • Congo red's image is recorded as Kongo red sample.jpg[3].
  • Congo red's instance of is recorded as type of chemical entity[4].
  • Congo red's chemical structure is recorded as Direct Red 28, Na-Salt.svg[5].
  • Republic of the Congo is named after Congo red[6].
  • Congo red's CAS Registry Number is recorded as 573-58-0[7].
  • Congo red's EC number is recorded as 209-358-4[8].
  • Congo red's canonical SMILES is recorded as C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+][9].
  • Congo red's InChI is recorded as InChI=1S/C32H24N6O6S2.2Na/c33-31-25-7-3-1-5-23(25)29(45(39,40)41)17-27(31)37-35-21-13-9-19(10-14-21)20-11-15-22(16-12-20)36-38-28-18-30(46(42,43)44)24-6-2-4-8-26(24)32(28)34;;/h1-18H,33-34H2,(H,39,40,41)(H,42,43,44);;/q;2*+1/p-2[10].
  • Congo red's InChIKey is recorded as IQFVPQOLBLOTPF-UHFFFAOYSA-L[11].
  • Congo red's chemical formula is recorded as C₃₂H₂₂N₆Na₂O₆S₂[12].
  • Congo red's subclass of is recorded as chemical compound[13].
  • Congo red's has use is recorded as dye[14].
  • Congo red's Commons category is recorded as Congo red[15].
  • Congo red's MeSH descriptor ID is recorded as D003224[16].
  • Congo red's ChEMBL ID is recorded as CHEMBL429694[17].
  • Congo red's Freebase ID is recorded as /m/03g5cg[18].
  • Congo red's ChemSpider ID is recorded as 10838[19].
  • Congo red's PubChem CID is recorded as 11313[20].
  • Congo red's PubChem CID is recorded as 517217[21].
  • Congo red's KEGG ID is recorded as C14078[22].
  • Congo red's MeSH tree code is recorded as D02.455.426.559.847.638.555.300[23].
  • Congo red's MeSH tree code is recorded as D02.886.645.600.080.050.650.250[24].
  • Congo red's MeSH tree code is recorded as D04.615.638.555.300[25].
  • Congo red's ZVG number is recorded as 105337[26].
  • Congo red's ChEBI ID is recorded as 34653[27].

Why It Matters

Congo red ranks in the top 6% of type_of_chemical_entity entities by monthly Wikipedia readership (29 views/month).[2] It has Wikipedia articles in 19 language editions, a strong signal of global cultural recognition.[28] It 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] . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . ECHA Substance Infocard database. Retrieved . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . ChEBI release 2020-09-01. wikidata.org.
  10. [12] . PubChem. wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . Medical Subject Headings. Retrieved . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . Freebase Data Dumps. wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . ChEBI release 2019-10-02. 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). Congo red. Retrieved May 3, 2026, from https://4ort.xyz/entity/congo-red
MLA “Congo red.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/congo-red.
BibTeX @misc{4ortxyz_congo-red_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Congo red}}, year = {2026}, url = {https://4ort.xyz/entity/congo-red}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Congo red — https://4ort.xyz/entity/congo-red (retrieved 2026-05-03)

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