Linoleic acid |
Last updated: 25/05/2024
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(Also known as: linolic acid; telfairic acid) |
The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.
Environmental fate |
Ecotoxicity |
Human health |
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A naturally occurring fatty acid that is often found in botanical essential oils and has been shown to exhibit insecticidal properties |
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Colorado beetle (Leptinotarsa decemlineata) |
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Potatoes |
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Novel |
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Not available commercially as a pesticide |
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Not approved |
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Not applicable |
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No UK approval for use |
EC Regulation 1107/2009 (repealing 91/414) |
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Not approved |
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Not applicable |
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Not applicable |
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Not applicable |
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No |
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ATAustria |
BEBelgium |
BGBulgaria |
CYCyprus |
CZCzech Republic |
DEGermany |
DKDenmark |
EEEstonia |
ELGreece |
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ESSpain |
FIFinland |
FRFrance |
HRCroatia |
HUHungary |
IEIreland |
ITItaly |
LTLithuania |
LULuxembourg |
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LVLatvia |
MTMalta |
NLNetherlands |
PLPoland |
PTPortugal |
RORomania |
SESweden |
SISlovenia |
SKSlovakia |
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ISIceland |
NONorway |
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Conjugated linoleic acid (CLA - refers to a mixture of linoleic acid positional and geometric isomers). is a mixture of eight isomers. |
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C₁₈H₃₂O₂ |
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CCCCCC=CCC=CCCCCCCCC(=O)O |
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CCCCC/C=C\C/C=C\CCCCCCCC(=O)O |
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OYHQOLUKZRVURQ-HZJYTTRNSA-N |
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InChI=1S/C18H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h6-7,9-10H,2-5,8,11-17H2,1H3,(H,19,20)/b7-6-,10-9- |
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Yes |
Cambridge Crystallographic Data Centre diagrams |
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Common Name |
Relationship |
Link |
linoleic acid |
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Insecticide, Other substance |
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Essential oil component |
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Plant-derived substance |
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Natural |
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Demonstrates the ability to slow insect larval development and induce anti-feed effects |
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Tends to occur in nature as a triglyceride (ester of glycerin) rather than as a free fatty acid. It is present in many botanical oils including that from safflower, corn oil, soybean oils, sesame, and almond. it is also present in milk |
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One commercially viable method for linoleic acid synthesis is using linoleic acid fractions obtained from pork by-products |
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Crop protection |
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Colorado beetle (Leptinotarsa decemlineata) |
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Potatoes |
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- |
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60-33-3 |
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200-470-9 |
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- |
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5280450 |
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280.4 |
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(9Z,12Z)-octadeca-9,12-dienoic acid |
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(9Z,12Z)-octadeca-9,12-dienoic acid |
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FEMA=3380 |
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Not applicable |
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Not applicable |
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Not applicable |
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Not applicable |
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Colourless to straw-colored liquid |
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1.59 |
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source at 25 °C |
Low |
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Miscible |
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source Ether |
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41000 |
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source Acetone |
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230 |
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
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1.12 X 1007 |
Calculated |
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7.05 |
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
High |
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4.77 |
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
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Readily biodegradable |
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. |
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Soil adsorption and mobility |
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None
Terrestrial ecotoxicology |
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HUMAN HEALTH AND PROTECTION |
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Carcinogen |
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Endocrine disruptor |
No data found |
A0 A = Chromosome aberration (EFSA database) 0 = No data ; B0 B = DNA damage/repair (EFSA database) 0 = No data ; C0 C = Gene mutation (EFSA database) 0 = No data ; D0 D = Genome mutation (EFSA database) 0 = No data ; E0 E = Unspecified genotoxicity type (miscellaneous data source) 0 = No data |
No data found |
Reproduction / development effects |
Acetyl cholinesterase inhibitor |
Neurotoxicant |
No data found |
No data found |
No data found |
Respiratory tract irritant |
Skin irritant |
Skin sensitiser |
?Possibly, status not identified |
✓Yes, known to cause a problem |
?Possibly, status not identified |
Eye irritant |
Phototoxicant |
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✓Yes, known to cause a problem |
No data found |
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No information available |
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Easily oxidised by air |
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Not listed (Not listed) |
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linoleic acid |
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Record last updated: |
25/05/2024 |
Contact: |
aeru@herts.ac.uk |
Please cite as: |
Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242 |