Overview

Stats

Type
22
Carbons
2
Double bonds
1
Bis-allylic sites
336.6
Weight · g/mol
Melting point
C22H40O2
Formula

Also known as

IUPAC (13Z,16Z)-docosa-13,16-dienoic acid
Synonyms

  At a Glance

Source

Found in fish & seafood. Also made by the body.

Type

Very-long-chain polyunsaturated fatty acid with 22 carbons and two cis double bonds, an omega-6 fatty acid.

Identification

  Synonyms

Common Name Docosadienoic acid
IUPAC Name (13Z,16Z)-docosa-13,16-dienoic acid
Traditional Name
Other Synonyms
  • (13Z,16Z)-docosadienoic acid

  External IDs

General References
Lipids
Lipid Maps LMFA01030405
Lipid Bank
Swiss Lipids 000001120
PlantFA ID
Food & Nutrition
FooDB
INFOODS
Chemistry / Compounds
PubChem CID 5312554
ChEBI 75117
ChemSpider 4471979
InChIKey
NIKKAJI ID J1.720.804G
PDBe
UCI (UniChem)
SureChEMBL 842117
CCDC
NMRShiftDB
Metabolites & Pathways
METLIN
RefMet ID
RefMet Name
MetaboLights ID MTBLS1071
BioCyc/MetaCyc
MetaNetX ID MNXM9691
BiGG ID
KEGG C16533
KNApSAcK
Reactome ID
Drugs & Pharmacology
DrugBank
DrugCentral
BindingDB 50463975
Guide to Pharm
Probes & Drugs PD043825
Clinical & Medical
SNOMED-CT
MeSH
NCIt Code C68344
Regulatory
NIH UNII (USA) BT5EG9E9ZY
FDA SRS (USA) BT5EG9E9ZY
NHPID (Canada)
DTXSID (USA) DTXSID201354088
TGA Ing ID (Australia)
Commercial Suppliers
eMolecules
Mcule
ChemicalBook
MedChemExpress

Isomers of 22:2 (2)

Other fatty acids sharing the 22:2 notation — differing by double-bond position, geometry (cis/trans), or conjugation.

Name Geometry Trans Structure PubChem
Current Fatty Acid
Docosadienoic acid
(13Z,16Z)-docosa-13,16-dienoic acid
13Z,16Z
5312554
Category
Conjugation Type Isolated
SMILES CCCCC\C=C/C\C=C/CCCCCCCCCCCC(=O)O
Description
Origin Details

No origin information recorded.

Positional (1)
5Z,13Z-Docosadienoic Acid
(5Z,13Z)-docosa-5,13-dienoic acid
5Z,13Z
5282806
Category Non-Methylene-Interrupted Polyunsaturated Fatty Acid (Δ5)
Conjugation Type Isolated
SMILES CCCCCCCC\C=C/CCCCCC\C=C/CCCC(=O)O
Description A non-methylene-interrupted docosadienoic acid with widely spaced Δ5 and Δ13 double bonds, dominant in meadowfoam seed oil and used industrially for high-stability estolides and lubricants.
Origin Details
Origin Source Type Details
Meadowfoam Seed Oil Natural Comprises approximately 10-20% of meadowfoam (Limnanthes alba) seed oil; also present in minor amounts in some Cruciferae species.

Chemical Properties

Name(s):
Common Name Docosadienoic acid
Simple Notation 22:2
Notation 22:2(n-6)
IUPAC Name (13Z,16Z)-docosa-13,16-dienoic acid
Semi-systematic Docosadienoic acid
Structure:
Molecular C22H40O2
SMILES CCCCC\C=C/C\C=C/CCCCCCCCCCCC(=O)O
Cis / Trans cis
E-Z 13Z,16Z
Physical:
Weight 336.6 g/mol
Reactivity
Double Bonds 2
Bis-Allylic Carbons 1 (High Reactivity)
Beta-Oxidation
Beta Oxidation Cycles 10
ATP Yield (Net) 145 ATP