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petasin

chemical compound
Class type of: eremophilane sesquiterpenoid Q7171781

Facts

8 properties
Instance of
type of chemical entity
Subclass of
eremophilane sesquiterpenoid[4]
Canonical SMILES
CC=C(C)C(=O)OC1CCC2=CC(=O)C(CC2(C1C)C)C(=C)C[2]
Chemical formula
C₂₀H₂₈O₃[3]
Found in taxon
Petasites fragrans, Petasites hybridus, Sinacalia tangutica, Ligularia sagitta, Petasites formosanus, Senecio integrifolius, Hoehnephytum imbricatum, Ligularia lamarum, Camptacra gracilis, Ligularia subspicata, Tephroseris palustris, Petasites japonicus, Petasites pyrenaicus[5][6][7][8][9][10][11][12][13][14]
Isomeric SMILES
C/C=C(/C)\C(=O)O[C@@H]1CCC2=CC(=O)[C@@H](C[C@@]2([C@H]1C)C)C(=C)C
Mass
+316.203845
Stereoisomer of
[(1R,2R,7R,8aR)-1,8a-dimethyl-6-oxo-7-prop-1-en-2-yl-1,2,3,4,7,8-hexahydronaphthalen-2-yl] (E)-2-methylbut-2-enoate, (3S)-3-Isopropenyl-4abeta,5beta-dimethyl-6alpha-(2-methylcrotonoyloxy)-2,3,4,4a,5,6,7,8-octahydronaphthalene-2-one, neopetasin
🏷️ Also known as
en petasin en (+)-Petasin ar البيتاسين fa پتاسین ja ペタシン pl (+)-petazyna ru Петасин
🔖 Identifiers · 15
CAS Registry Number
26577-85-5
ChEBI ID
8030
ChEMBL ID
CHEMBL3291073
ChemSpider ID
4444859
Freebase ID
/m/0h_c5cn
InChI
InChI=1S/C20H28O3/c1-7-13(4)19(22)23-18-9-8-15-10-17(21)16(12(2)3)11-20(15,6)14(18)5/h7,10,14,16,18H,2,8-9,11H2,1,3-6H3/b13-7-/t14-,16-,18+,20+/m0/s1
InChIKey
ISTBXSFGFOYLTM-NZEDGPFZSA-N
KEGG ID
C09706
KNApSAcK ID
C00003169
Microsoft Academic ID (discontinued)
2778243464
PubChem CID
5281526
Reaxys registry number
2419978
Show all 15 identifiers +3
SureChEMBL ID
12621121
UNII
9Z0Q32J0QC
UniChem compound ID
1073130

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Found in taxon 6
Petasites hybridus, Petasites japonicus, Petasites pyrenaicus, Petasites fragrans, Tephroseris palustris, Sinacalia tangutica
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Summary

petasin is a type of chemical entity[1].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . PubChem. Retrieved . wikidata.org.
  2. [3] ↑ . PubChem. Retrieved . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . Sesquiterpenoids from petasites fragrans. wikidata.org.
  5. [6] ↑ . Role of petasin in the potential anti-inflammatory activity of a plant extract of petasites hybridus. wikidata.org.
  6. [7] ↑ . The Components of Cacalia tangutica. wikidata.org.
  7. [8] ↑ . Six New Eremophilane Derivatives from Two Ligularia Species. wikidata.org.
  8. [9] ↑ . Relaxant effects of petasins in isolated guinea pig trachea and their structure-activity relationships. wikidata.org.
  9. [10] ↑ . Eremophilane derivatives from Senecio species. wikidata.org.
  10. [11] ↑ . A petasol deravative from Hoehnephytum imbricatum. wikidata.org.
  11. [12] ↑ . Overlapping chemical and genetic diversity in Ligularia lamarum and Ligularia subspicata. Isolation of ten new eremophilanes and a new seco-bakkane compound. wikidata.org.
  12. [13] ↑ . Overlapping chemical and genetic diversity in Ligularia lamarum and Ligularia subspicata. Isolation of ten new eremophilanes and a new seco-bakkane compound. wikidata.org.
  13. [14] ↑ . Overlapping chemical and genetic diversity in Ligularia lamarum and Ligularia subspicata. Isolation of ten new eremophilanes and a new seco-bakkane compound. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

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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). petasin. Retrieved November 8, 2026, from https://4ort.xyz/entity/petasin
MLA “petasin.” 4ort.xyz Knowledge Graph, 4ort.xyz, 8 Nov. 2026, https://4ort.xyz/entity/petasin.
BibTeX @misc{4ortxyz_petasin_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{petasin}}, year = {2026}, url = {https://4ort.xyz/entity/petasin}, note = {Accessed: 2026-11-08}}
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