alpha-Eleostearic acidα-ESA

PUFA18:3Ω-5 Trans CLnA

  Overview

Stats

PUFA
Type
18
Carbons
3
Double bonds
0
Bis-allylic sites
278.4
Weight · g/mol
48 °C
Melting point
C18H30O2
Formula

Also known as

IUPAC (9Z,11E,13E)-octadeca-9,11,13-trienoic acid

  At a Glance

Key Points

A conjugated fatty acid that gives tung oil its properties as a drying oil.

Source

Primarily from plants.

Type

Long-chain polyunsaturated fatty acid with 18 carbons and three trans double bonds (conjugated), an omega-5 fatty acid.

Identification

  Synonyms

Common Name alpha-Eleostearic acid
IUPAC Name (9Z,11E,13E)-octadeca-9,11,13-trienoic acid
Traditional Name —
Other Synonyms No other synonyms recorded.

  External IDs

General References
Lipids
Lipid Maps LMFA01030147
Lipid Bank DFA0186
Swiss Lipids —
PlantFA ID —
Food & Nutrition
FooDB —
INFOODS —
Chemistry / Compounds
PubChem CID 5281115
CAS 506-23-0
ChEBI 10275
ChEMBL —
ChemSpider —
InChIKey —
ZINC ID ZINC000016343340
NIKKAJI ID J12.230K
PDBe —
UCI (UniChem) 1066392
SureChEMBL 38279
CCDC —
NMRShiftDB —
Metabolites & Pathways
HMDB —
METLIN —
RefMet ID —
RefMet Name —
MetaboLights ID MTBLS1411
BioCyc/MetaCyc —
MetaNetX ID —
BiGG ID —
KEGG C08315
KNApSAcK C00001216
Reactome ID —
Drugs & Pharmacology
DrugBank —
DrugCentral —
BindingDB —
Guide to Pharm —
Probes & Drugs PD206827
Clinical & Medical
SNOMED-CT —
MeSH —
NCIt Code —
Regulatory
NIH UNII (USA) 934U1Q8QHG
FDA SRS (USA) 934U1Q8QHG
NHPID (Canada) —
DTXSID (USA) DTXSID00897457
TGA Ing ID (Australia) —
Commercial Suppliers
MolPort —
eMolecules —
Mcule —
ChemicalBook —
MedChemExpress —

Isomers of 18:3 (11)

Other fatty acids sharing the 18:3 notation — differing by double-bond position, geometry (cis/trans), or conjugation.

Name Geometry Trans Structure PubChem
Current Fatty Acid
alpha-Eleostearic acid
(9Z,11E,13E)-octadeca-9,11,13-trienoic acid
 9Z,11E,13E Trans
5281115
Category —
Conjugation Type Conjugated
SMILES CCCC\C=C\C=C\C=C/CCCCCCCC(=O)O
Description —
Origin Details

No origin information recorded.
Geometric (3)
Punicic acid
(9Z,11E,13Z)-octadeca-9,11,13-trienoic acid
 9Z,11E,13Z Trans
5281126
Category —
Conjugation Type Conjugated
SMILES CCCC/C=C\C=C\C=C/CCCCCCCC(=O)O
Description —
Origin Details

No origin information recorded.
beta-Eleostearic acid
(9E,11E,13E)-octadeca-9,11,13-trienoic acid
 9E,11E,13E Trans
5282820
Category —
Conjugation Type Conjugated
SMILES CCCC\C=C\C=C\C=C\CCCCCCCC(=O)O
Description —
Origin Details

No origin information recorded.
Catalpic acid
(9E,11E,13Z)-octadeca-9,11,13-trienoic acid
 9E,11E,13Z Trans
5385589
Category —
Conjugation Type Conjugated
SMILES CCCC/C=C\C=C\C=C\CCCCCCCC(=O)O
Description —
Origin Details

No origin information recorded.
Positional (7)
α-Linolenic acid
(9Z,12Z,15Z)-octadeca-9,12,15-trienoic acid
 9Z,12Z,15Z —
5280934
Category —
Conjugation Type Isolated
SMILES CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O
Description —
Origin Details

No origin information recorded.
γ-Linolenic acid
(6Z,9Z,12Z)-octadeca-6,9,12-trienoic acid
 6Z,9Z,12Z —
5280933
Category —
Conjugation Type Isolated
SMILES CCCCC/C=C\C/C=C\C/C=C\CCCCC(=O)O
Description —
Origin Details

No origin information recorded.
Pinolenic acid
(5Z,9Z,12Z)-octadeca-5,9,12-trienoic acid
 5Z,9Z,12Z —
5312495
Category —
Conjugation Type Isolated
SMILES CCCCC/C=C\C/C=C\CC\C=C/CCCC(=O)O
Description —
Origin Details

No origin information recorded.
Columbinic Acid
(5E,9Z,12Z)-octadeca-5,9,12-trienoic acid
 5E,9Z,12Z Trans
5312485
Category Non-Methylene-Interrupted Omega-6 Polyunsaturated Fatty Acid
Conjugation Type Isolated
SMILES CCCCC\C=C/C\C=C/CC/C=C/CCCC(=O)O
Description A non-methylene-interrupted Δ5-trans omega-6 polyunsaturated fatty acid found in Aquilegia (columbine) and Thalictrum seed oils, capable of reversing essential fatty-acid deficiency symptoms without serving as a prostaglandin precursor.
Origin Details
Origin Source Type Details
Ranunculaceae Seed Oils Natural Concentrated in seeds of Aquilegia vulgaris (columbine), Thalictrum, and related Ranunculaceae species.
Calendic acid
(8E,10E,12Z)-octadeca-8,10,12-trienoic acid
 8E,10E,12Z Trans
5282818
Category —
Conjugation Type Conjugated
SMILES CCCCC/C=C\C=C\C=C\CCCCCCC(=O)O
Description —
Origin Details

No origin information recorded.
Jacaric Acid
(8Z,10E,12Z)-octadeca-8,10,12-trienoic acid
 8Z,10E,12Z Trans
5282817
Category Conjugated Linolenic Acid (CLnA, n-6)
Conjugation Type Conjugated
SMILES CCCCC\C=C/C=C/C=C\CCCCCCC(=O)O
Description A conjugated linolenic acid isomer found in Jacaranda mimosifolia seed oil, investigated for pro-apoptotic activity in leukemia cell lines.
Origin Details
Origin Source Type Details
Jacaranda Seed Oil Natural Comprises approximately 37% of seed oil fatty acids of Jacaranda mimosifolia (Bignoniaceae).
Rumelenic Acid
(9Z,11E,15Z)-octadeca-9,11,15-trienoic acid
 9Z,11E,15Z Trans
5280644
Category Ruminant Conjugated Linolenic Acid (CLnA, n-3)
Conjugation Type Conjugated
SMILES CC\C=C/CC/C=C/C=C\CCCCCCCC(=O)O
Description A partially conjugated omega-3 fatty acid (9,11-conjugated with isolated 15-DB) produced as a biohydrogenation intermediate of alpha-linolenic acid in ruminant rumen and present in dairy fat.
Origin Details
Origin Source Type Details
Rumen Biohydrogenation Natural Produced in cattle and sheep rumen by linoleate isomerase action on alpha-linolenic acid as an intermediate in microbial biohydrogenation to vaccenic and stearic acids.

Chemical Properties

Name(s):
Common Name alpha-Eleostearic acid
Abbreviation α-ESA
Simple Notation 18:3
Notation 18:3(n-5) conjugated 9c,11t,13t
IUPAC Name (9Z,11E,13E)-octadeca-9,11,13-trienoic acid
Structure:
Molecular C18H30O2
SMILES CCCC\C=C\C=C\C=C/CCCCCCCC(=O)O
Cis / Trans trans
E-Z 9Z,11E,13E
Physical:
Weight 278.4 g/mol
Melting Point 48 °C
Reactivity
Double Bonds 3
Bis-Allylic Carbons 0
Beta-Oxidation
Beta Oxidation Cycles 8
ATP Yield (Net) 115.5 ATP