From August 18th 2026, GtoPdb will require users to register to use the website. Please see our blog post for more information.

arachidonic acid   Click here for help

GtoPdb Ligand ID: 2391

Synonyms: C20:4
PDB Ligand
Compound class: Metabolite
Comment: Arachidonic acid is a polyunsaturated fatty acid that demonstrates antibacterial activity against Staphylococcus aureus [2].
Click here for help

Ligand Activity Visualisation Charts

These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.

✖

View interactive charts of activity data across species

arachidonic acid is commercially available from our sponsors

2D Structure
Click here for help

2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

✖
Click here for structure editor
Physico-chemical Properties
Click here for help

Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

✖
Hydrogen bond acceptors 2
Hydrogen bond donors 1
Rotatable bonds 14
Topological polar surface area 37.3
Molecular weight 304.24
XLogP 8.35
No. Lipinski's rules broken 2

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
SMILES / InChI / InChIKey
Click here for help

SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

✖
Canonical SMILES CCCCCC=CCC=CCC=CCC=CCCCC(=O)O
Isomeric SMILES CCCCC/C=C\C/C=C\C/C=C\C/C=C\CCCC(=O)O
InChI InChI=1S/C20H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(21)22/h6-7,9-10,12-13,15-16H,2-5,8,11,14,17-19H2,1H3,(H,21,22)/b7-6-,10-9-,13-12-,16-15-
InChI Key YZXBAPSDXZZRGB-DOFZRALJSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
Classification Click here for help
Compound class Metabolite
IUPAC Name Click here for help
(5Z,8Z,11Z,14Z)-icosa-5,8,11,14-tetraenoic acid
Synonyms Click here for help
C20:4
Database Links Click here for help
Specialist databases
Antibiotic DB Antibiotic DB Database logo Arachidonic Acid
Other databases
CAS Registry No. 506-32-1 (source: Scifinder)
ChEBI CHEBI:15843
ChEMBL Ligand CHEMBL15594
DrugBank Ligand DB04557
GtoPdb PubChem SID 135651442
LIPID MAPS LMFA01030001
PubChem CID 444899
RCSB PDB Ligand ACD
Search Google for chemical match using the InChIKey YZXBAPSDXZZRGB-DOFZRALJSA-N
Search Google for chemicals with the same backbone YZXBAPSDXZZRGB
UniChem Compound Search for chemical match using the InChIKey YZXBAPSDXZZRGB-DOFZRALJSA-N
UniChem Connectivity Search for chemical match using the InChIKey YZXBAPSDXZZRGB-DOFZRALJSA-N
Wikipedia Arachidonic_acid

Product suppliers

View disclaimer

Sponsored products disclaimer

Product supplier links are provided as a service to assist in identifying commercial suppliers of reagents that are mentioned on the IUPHAR/BPS Guide to PHARMACOLOGY database website, and do not imply their endorsement by NC-IUPHAR.

Links are provided in return for sponsorship, used to fund improvements to this database. The sponsorship account is managed and audited by the University of Edinburgh, a charitable body registered in Scotland, SC005336. If you are interested in sponsoring the database, please contact us.

✖

MedChemExpress
Arachidonic acid (links to external site)
Cat. No. HY-109590
(Same CID)