OBO ID: CHEBI:5635

Term Name:	helenalin		Search Ontology:
Synonyms:	(3aS)-3,3aalpha,4alpha,4a,7aalpha,8,9,9aalpha-octahydro-4-hydroxy-4abeta,8alpha-dimethyl-3-methyleneazuleno(6,5-b)-furan-2,5-dione (3aS,4S,4aR,7aR,8R,9aR)-4-hydroxy-4a,8-dimethyl-3-methylidene-3,3a,4,4a,7a,8,9,9a-octahydroazuleno[6,5-b]furan-2,5-dione 6alpha,8beta-dihydroxy-4-oxoambrosa-2,11(13)-dien-12-oic acid 12,8-lactone Helenalin A
Definition:	A sesquiterpene lactone that is 3,3a,4,4a,7a,8,9,9a-octahydroazuleno[6,5-b]furan-2,5-dione substituted by a hydroxy group at position 4, methyl groups at positions 4a and 8 and a methylidene group at position 3 (the 3aS,4S,4aR,7aR,8R,9aR stereoisomer).
References:	CAS:6754-13-8 KEGG:C09473 KNApSAcK:C00003298 PMID:20175984 PMID:21669190 PMID:22784363 PMID:23123298 PMID:23727063 PMID:24044884 Reaxys:28081
Ontology:	ChEBI  ( EBI )