Cahn–Ingold–Prelog priority rules

rules for ordering substituents when assigning descriptors to identify stereoisomers in organic chemistry nomeclature
Place ruleset Q899673
Press Enter · cited answer in seconds

Cahn–Ingold–Prelog priority rules

Summary

Cahn–Ingold–Prelog priority rules is a ruleset[1]. It draws 161 Wikipedia views per month (ruleset category, ranking #1 of 4).[2]

Key Facts

  • Cahn–Ingold–Prelog priority rules's instance of is recorded as ruleset[3].
  • Cahn–Ingold–Prelog priority rules's instance of is recorded as algorithm[4].
  • Cahn–Ingold–Prelog priority rules's instance of is recorded as ranking[5].
  • Robert Sidney Cahn is named after Cahn–Ingold–Prelog priority rules[6].
  • Christopher Kelk Ingold is named after Cahn–Ingold–Prelog priority rules[7].
  • Vladimir Prelog is named after Cahn–Ingold–Prelog priority rules[8].
  • Cahn–Ingold–Prelog priority rules's subclass of is recorded as process[9].
  • Cahn–Ingold–Prelog priority rules's Freebase ID is recorded as /m/01t90[10].
  • Cahn–Ingold–Prelog priority rules's facet of is recorded as stereoisomerism[11].
  • Cahn–Ingold–Prelog priority rules's Encyclopædia Britannica Online ID is recorded as science/Cahn-Ingold-Prelog[12].
  • Cahn–Ingold–Prelog priority rules's used by is recorded as IUPAC nomenclature of organic chemistry[13].
  • Cahn–Ingold–Prelog priority rules's IUPAC Gold Book ID is recorded as C00772[14].
  • Cahn–Ingold–Prelog priority rules's schematic is recorded as CIP priority diagram.png[15].
  • Cahn–Ingold–Prelog priority rules's Microsoft Academic ID is recorded as 138724741[16].

Body

Designation and Status

Recorded instance of include ruleset[3], algorithm[4], and ranking[5].

History and Context

Things named after include Robert Sidney Cahn[6], a chemist[17], 1899–1981[18], of United Kingdom[19], awarded the Fellow of the Royal Society of Chemistry[20]; Christopher Kelk Ingold[7], a chemist[21], 1893–1970[22], of United Kingdom[23], awarded the Fellow of the Royal Society[24], specialised in organic chemistry[25]; and Vladimir Prelog[8], a chemist[26], 1906–1998[27], of Austria–Hungary[28], awarded the Nobel Prize in Chemistry[29], specialised in organic chemistry[30].

Why It Matters

Cahn–Ingold–Prelog priority rules draws 161 Wikipedia views per month (ruleset category, ranking #1 of 4).[2] It has Wikipedia articles in 17 language editions, a strong signal of global cultural recognition.[31] It is known by 34 alternative names across languages and contexts.[32]

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] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . Freebase Data Dumps. wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.

Inline context (facts about related entities)

  1. [17] . Wikidata. wikidata.org. → on this site
  2. [18] . Wikidata. wikidata.org. → on this site
  3. [19] . Wikidata. wikidata.org. → on this site
  4. [20] . Wikidata. wikidata.org. → on this site
  5. [21] . Wikidata. wikidata.org. → on this site
  6. [22] . Wikidata. wikidata.org. → on this site
  7. [23] . Wikidata. wikidata.org. → on this site
  8. [24] . Wikidata. wikidata.org. → on this site
  9. [25] . Wikidata. wikidata.org. → on this site
  10. [26] . Wikidata. wikidata.org. → on this site
  11. [27] . Wikidata. wikidata.org. → on this site
  12. [28] . Wikidata. wikidata.org. → on this site
  13. [29] . Wikidata. wikidata.org. → on this site
  14. [30] . 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. [31] . Wikidata sitelinks. wikidata.org.
  3. [32] . 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). Cahn–Ingold–Prelog priority rules. Retrieved May 3, 2026, from https://4ort.xyz/entity/cahn-ingold-prelog-priority-rules
MLA “Cahn–Ingold–Prelog priority rules.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/cahn-ingold-prelog-priority-rules.
BibTeX @misc{4ortxyz_cahn-ingold-prelog-priority-rules_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Cahn–Ingold–Prelog priority rules}}, year = {2026}, url = {https://4ort.xyz/entity/cahn-ingold-prelog-priority-rules}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Cahn–Ingold–Prelog priority rules — https://4ort.xyz/entity/cahn-ingold-prelog-priority-rules (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/cahn-ingold-prelog-priority-rules · Last refreshed: