(Also known as: p-mentha-6,8-dien-2-one; d-carvone)
Hazard alerts
The following Pesticide Hazard Tricolour (PHT) 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. The alerts for Highly Hazardous Pesticides (HHPs) are based on applying the FAO/WHO (Type 1) and the PAN (Type II) criteria to PPDB data. Further details on the HHP indicators are given in the tables below. Neither the PHT nor the HHP hazard alerts take account of usage patterns or exposure, thus they do not represent risk.
Approved for use (✓) under EC 1107/2009 in the following EU Member States
ATAustria
BEBelgium
BGBulgaria
CYCyprus
CZCzech Republic
DEGermany
DKDenmark
EEEstonia
ELGreece
ESSpain
FIFinland
FRFrance
HRCroatia
HUHungary
IEIreland
ITItaly
LTLithuania
LULuxembourg
LVLatvia
MTMalta
NLNetherlands
PLPoland
PTPortugal
RORomania
SESweden
SISlovenia
SKSlovakia
Approved for use (✓) under EC 1107/2009 by Mutual Recognition of Authorisation and/or national regulations in the following EEA countries
ISIceland
NONorway
Additional information
Also used in
-
Chemical structure
Isomerism
Cornmint oil contains several compounds that exist in isomeric forms, including: menthol that has the stereoisomers: (-)-menthol, (+)-menthol; menthone that has structural isomers and various other isomeric compounds such as limonene.
Chemical formula
-
Canonical SMILES
-
Isomeric SMILES
-
International Chemical Identifier key (InChIKey)
-
International Chemical Identifier (InChI)
Major consitituent: InChI=1S/C10H14O/c1-7(2)9-5-4-8(3)10(11)6-9/h4,9H,1,5-6H2,2-3H3
2D structure diagram/image available?
No
General status
Biopesticide type
Plant Growth Regulator; Insecticide; Metabolite; Other substance
Metabolite Type
Soil; Groundwater
Other bioactivity & uses
Antimicrobial
Substance groups
Plant-derived substance; Plant oil
Minimum active substance purity
-
Known relevant impurities
-
Substance origin
Natural; Complex mixture
Mode of action
Works primarily through a non-toxic mode of action as a repellent but also thought to inhibit cell growth
Insecticide behavioural & physiological effects
-
Substance source
Plant oil dervived primarily from the corn mint plant (Mentha arvensis)
Mixture composition
Cornmint oil is a complex essential oil primarily valued for its high menthol content, which typically ranges from 40-80%, making it one of the richest natural sources of menthol. Other major constituents include menthone (10-25%), isomenthone (variable, often 2-10%), menthyl acetate (up to 5-10%), limonene (2-10%), L-carvone and minor components such as 1,8-cineole, piperitone, beta-pinene, alpha-pinene, myrcene, and trace amounts of other monoterpenes, sesquiterpenes, and alcohols.
Uses
Post harvest management - crop protection, growth inhibitor, sprout inhibitor
Example manufacturers & suppliers of products using this active now or historically
-
Example products using this active
Formulation and application details
Usually supplied in formulations for hot fogging for indoor use only
Commercial production
Commercial production of cornmint oil involves cultivating the plant in temperate regions such as India, China, and parts of Southeast Asia. Once the mint reaches maturity, the aerial parts, mainly leaves and stems, are harvested and subjected to steam distillation, the most common extraction method. This process releases volatile compounds, especially menthol. After distillation, the oil is often crystallized to separate menthol, leaving behind dementholised cornmint oil, which is used in various applications.
Impact on climate of production and use
Data for specific plant oils is scarce. However, from publicly available data the carbon footprint of plant oils has been estimated at between 1.0 and 4.0 kg CO₂e per kg of oil. This depends on the plant oil content, agricultural practices and processing methods used.
ENVIRONMENTAL FATE
Property
Value
Source; quality score; and other information
Interpretation
Solubility - In water at 20 °C at pH 7 (mg l⁻¹)
-
-
-
Solubility - In organic solvents at 20 °C (mg l⁻¹)
Dissipation rate RL₅₀ (days) on and in plant matrix
Value
-
-
-
Note
-
Aqueous photolysis DT₅₀ (days) at pH 7
Value
-
-
-
Note
-
Aqueous hydrolysis DT₅₀ (days) at 20 °C and pH 7
Value
-
-
-
Note
-
Water-sediment DT₅₀ (days)
-
-
-
Water phase only DT₅₀ (days)
-
-
-
Sediment phase only DT₅₀ (days)
-
-
-
Air degradation
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.
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
Your use of this website and its various databases is subject to the terms detailed in the University of Hertfordshire’s copyright and IPR statement that can be found at https://www.herts.ac.uk/about-us/legal.
In addition, your use of this website and its various databases is subject to the terms of this additional Copyright Statement and the database Conditions of use document.
Unless explicitly stated otherwise, the content of this website and databases are owned and controlled by the University of Hertfordshire. Site content, including its selection and arrangement, is owned by the University of Hertfordshire and is protected by copyright and other laws.
Except as otherwise expressly permitted under copyright law or within the database Conditions of Use document, the content of this site may not be copied, reproduced, republished, downloaded, posted, broadcast or transmitted in any way without first obtaining the University of Hertfordshire’s written permission.
By using our databases the user is deemed to have agreed to comply with all of the terms and conditions as described above and within all relevant documentation.
Ecotoxicity
Warning:
Human health
