Overview

Stats

Type
18
Carbons
3
Double bonds
0
Bis-allylic sites
278.4
Weight · g/mol
44.5 °C
Melting point
C18H30O2
Formula

Also known as

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

  At a Glance

Key Points

Named for the pomegranate; obtained from pomegranate seed 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 Punicic acid
IUPAC Name (9Z,11E,13Z)-octadeca-9,11,13-trienoic acid
Traditional Name
Other Synonyms
  • Trichosanic acid

  External IDs

General References
Wikipedia Punicic_acid
Lipids
Lipid Maps LMFA01030146
Lipid Bank DFA0185
Swiss Lipids
PlantFA ID
Food & Nutrition
FooDB FDB012466
INFOODS
Chemistry / Compounds
PubChem CID 5281126
ChEBI 8638
ChemSpider 20118304
InChIKey
NIKKAJI ID J13.207A
PDBe
UCI (UniChem)
SureChEMBL 158967
CCDC
NMRShiftDB
Metabolites & Pathways
METLIN
RefMet ID
RefMet Name
MetaboLights ID MTBLS1411
BioCyc/MetaCyc
MetaNetX ID
BiGG ID
KEGG C08364
KNApSAcK C00001236
Reactome ID
Drugs & Pharmacology
DrugBank
DrugCentral
BindingDB
Guide to Pharm
Probes & Drugs PD088520
Clinical & Medical
SNOMED-CT
MeSH
NCIt Code C68420
Regulatory
NIH UNII (USA) VFQ03H211O
FDA SRS (USA) VFQ03H211O
NHPID (Canada)
DTXSID (USA) DTXSID10897463
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
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.

Geometric (3)
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.

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 Punicic acid
Abbreviation PuA
Simple Notation 18:3
Notation 18:3(n-5) conjugated 9c,11t,13c
IUPAC Name (9Z,11E,13Z)-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,13Z
Physical:
Weight 278.4 g/mol
Melting Point 44.5 °C
Reactivity
Double Bonds 3
Bis-Allylic Carbons 0
Beta-Oxidation
Beta Oxidation Cycles 8
ATP Yield (Net) 115.5 ATP