Metabolite Card

Formula: C18H32O2 (280.2402)
SMILES: CCCCC\C=C/C\C=C/CCCCCCCC(O)=O

Synonyms [en]

linoleic acid; Linoleate; 9Z,12Z-octadecadienoic acid; cis,cis-Linoleic acid; (9Z,12Z)-Octadecadienoic acid; cis,cis-9,12-Octadecadienoic acid

Reviewed

Last reviewed on 2024-06-28.

Cite this Page

Linoleate. 数据之源,洞见之始. SMRUCC genomics institute, a synthetic life researcher from China. https://biocad_registry.innovation.ac.cn/s/(-)-arctiin (retrieved 2026-01-03) (CAD Registry RN: BioCAD00000013386). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Note

Linoleic acid is a doubly unsaturated fatty acid, also known as an omega-6 fatty acid, occurring widely in plant glycosides. In this particular polyunsaturated fatty acid (PUFA), the first double bond is located between the sixth and seventh carbon atom from the methyl end of the fatty acid (n-6). Linoleic acid is an essential fatty acid in human nutrition because it cannot be synthesized by humans. It is used in the biosynthesis of prostaglandins (via arachidonic acid) and cell membranes (From Stedman, 26th ed). Linoleic acid is found to be associated with isovaleric acidemia, which is an inborn error of metabolism.

Entity Information

DBLinks

Other DBLinks
  • CAS Registry Number: 2197-37-7
  • CAS Registry Number: 506-21-8
  • CAS Registry Number: 60-33-3
  • CAS Registry Number: 6144-28-1
  • CAS Registry Number: 8016-21-5
  • CAS Registry Number: 8024-22-4
  • CAS Registry Number: 80969-37-5
  • CAS Registry Number: 85594-37-2
  • PubChem: 3931
  • PubChem: 4750
  • PubChem: 5280450
  • ChEBI: ChEBI:137735
  • ChEBI: ChEBI:17351
  • ChEBI: ChEBI:30245
  • HMDB: HMDB0000673
  • HMDB: HMDB00673
  • LipidMaps: LMFA01030120
  • KEGG: C01595
  • BioCyc: LINOLEIC_ACID
  • NCBI MeSH: Linoleic Acid
  • Wikipedia: Linoleic acid
  • Wikipedia: Linoleic_acid
  • DrugBank: DB14104
  • RefMet: RM0149976
  • MoNA: BAF_UVA_POS000553
  • MoNA: BAF_UVA_POS001464
  • MoNA: CA000167
  • MoNA: CCMSLIB00000479710
  • MoNA: EMBL-MCF_spec347098
  • MoNA: EQ331601
  • MoNA: EQ331602
  • MoNA: EQ331603
  • MoNA: EQ331604
  • MoNA: EQ331605
  • MoNA: EQ331606
  • MoNA: EQ331651
  • MoNA: EQ331652
  • MoNA: EQ331653
  • MoNA: EQ331654
  • MoNA: EQ331655
  • MoNA: FiehnHILIC001299
  • MoNA: FiehnHILIC002801
  • MoNA: FiehnLib000703
  • MoNA: HMDB0000673_c_ms_1870
  • MoNA: HMDB0000673_ms_ms_286457
  • MoNA: HMDB0000673_ms_ms_286458
  • MoNA: HMDB0000673_ms_ms_286459
  • MoNA: HMDB0000673_ms_ms_286460
  • MoNA: HMDB0000673_ms_ms_286461
  • MoNA: HMDB0000673_ms_ms_930
  • MoNA: HMDB0000673_ms_ms_931
  • MoNA: HMDB0000673_ms_ms_932
  • MoNA: IA000127
  • MoNA: IA000128
  • MoNA: IA000129
  • MoNA: IA000301
  • MoNA: IA000302
  • MoNA: IA000303
  • MoNA: IA000496
  • MoNA: IA000497
  • MoNA: IA000498
  • MoNA: KO001295
  • MoNA: KO001296
  • MoNA: KO001297
  • MoNA: KO001298
  • MoNA: KO001299
  • MoNA: KZ000056
  • MoNA: MetaboBASE1091
  • MoNA: MetaboBASE1092
  • MoNA: MetaboBASE1093
  • MoNA: MetaboBASE1094
  • MoNA: MetaboBASE1095
  • MoNA: MoNA034672
  • MoNA: MoNA034673
  • MoNA: MoNA034675
  • MoNA: MoNA038098
  • MoNA: MT000114
  • MoNA: PR010199
  • MoNA: PS027801
  • MoNA: PS027802
  • MoNA: PS027803
  • MoNA: PS027804
  • MoNA: RP029501
  • MoNA: RP029502
  • MoNA: RP029503
  • MoNA: RP029511
  • MoNA: RP029512
  • Metlin: METLIN_191

Class / Ontology

Metabolic Network
ID EC Number Name
KEGG:R03626 1.13.11.12 linoleate:oxygen 13-oxidoreductase
KEGG:R03627 5.2.1.5 9-cis,12-cis-octadecadienoate delta12-cis-delta11-trans-isomerase
KEGG:R05718 1.13.11.45 linoleate:oxygen 11S-oxidoreductase
KEGG:R05740 1.14.19.39 linoleate,ferrocytochrome-b5:oxygen oxidoreductase (12,13-dehydrogenating)
KEGG:R07055 1.14.14.1 C01595 + C00007 + C00005 + C00080<=>C14825 + C00006 + C00001
KEGG:R07056 1.14.14.1 C01595 + C00007 + C00005 + C00080<=>C14826 + C00006 + C00001
KEGG:R07057 1.13.11.58 linoleate:oxygen 9-oxidoreductase
KEGG:R07061 1.13.11.60 linoleate:oxygen (8R)-oxidoreductase
KEGG:R07063 1.14.19.3 linoleoyl-CoA,hydrogen-donor:oxygen oxidoreductase
KEGG:R07064 3.1.1.4 phosphatidylcholine 2-acylhydrolase
KEGG:R08177 3.1.2.2 linoleoyl-CoA hydrolase
KEGG:R09811 1.13.11.62 linoleate:oxygen (10R)-oxidoreductase
KEGG:R10577 1.13.11.77 linoleate:oxygen (10S)-oxidoreductase
BioCyc:RXN-9673 6.2.1.3 LINOLEIC_ACID + CO-A + ATP --> CPD-18 + PPI + AMP
BioCyc:LINOLEATE-ISOMERASE-RXN 5.2.1.5 LINOLEIC_ACID<=>9-CIS11-TRANS-OCTADECADIENOATE
BioCyc:RXN-22222 1.14.14.- LINOLEIC_ACID + Red-NADPH-Hemoprotein-Reductases + OXYGEN-MOLECULE --> Vernolates + Ox-NADPH-Hemoprotein-Reductases + WATER
BioCyc:RXN-12760 1.13.11.61 LINOLEIC_ACID + OXYGEN-MOLECULE --> CPD-13768
BioCyc:RXN-16498 6.1.-.- LINOLEIC_ACID + ATP + PROTON --> CPD-17731 + PPI
BioCyc:RXN-12761 1.13.11.62 LINOLEIC_ACID + OXYGEN-MOLECULE --> CPD-13769
BioCyc:RXN-12659 1.11.2.3 CPD-8678 + LINOLEIC_ACID --> CPD-17614 + CPD-13636
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Organism Source

Taxonomy Source

Pathway Synthetic

pathway id name
Plant Reactome:R-OAU-2744345 Metabolism and regulation
Plant Reactome:R-TAE-2744344 Secondary metabolism
Plant Reactome:R-MES-2744345 Metabolism and regulation
Plant Reactome:R-MES-1119618 13-LOX and 13-HPL pathway
Plant Reactome:R-TDI-2744345 Metabolism and regulation
Plant Reactome:R-TDI-1119618 13-LOX and 13-HPL pathway
Plant Reactome:R-DRO-2744345 Metabolism and regulation
Plant Reactome:R-OGU-1119618 13-LOX and 13-HPL pathway
Plant Reactome:R-OMI-1119618 13-LOX and 13-HPL pathway
Plant Reactome:R-OMI-1119566 Divinyl ether biosynthesis II (13-LOX)
Plant Reactome:R-PTI-2744345 Metabolism and regulation
Plant Reactome:R-PTI-1119566 Divinyl ether biosynthesis II (13-LOX)
Plant Reactome:R-GMA-2744345 Metabolism and regulation
Plant Reactome:R-GMA-2744344 Secondary metabolism
Plant Reactome:R-PDA-2744345 Metabolism and regulation
Plant Reactome:R-PVU-2744345 Metabolism and regulation
Plant Reactome:R-PVU-1119566 Divinyl ether biosynthesis II (13-LOX)
Plant Reactome:R-BNA-1119566 Divinyl ether biosynthesis II (13-LOX)
Plant Reactome:R-BRA-1119618 13-LOX and 13-HPL pathway
Plant Reactome:R-DCA-1119618 13-LOX and 13-HPL pathway
View All Pathways