Alpha-terpineol |
Last updated: 15/05/2024 |
(Also known as: Tea tree oil extract; Oil of Melaleuca; TTO; Carvomenthenol; Terpenol) |
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A component (1-8%) of Tea tree oil which is used to control various fungal pathogens on a wide range of crops | |
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1920s, Tea tree oil first reported | |
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Chemical structure |
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C₁₀H₁₈O | |
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CC1=CCC(CC1)C(C)(C)O | |
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No data | |
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WUOACPNHFRMFPN-UHFFFAOYSA-N | |
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InChI=1S/C10H18O/c1-8-4-6-9(7-5-8)10(2,3)11/h4,9,11H,5-7H2,1-3H3 | |
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Yes |
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Plant-derived substance | |
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Natural | |
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Tea tree oil appears to disrupt the permeability barrier of microbial cell membrane structures, causing loss of chemiosmotic control. | |
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98-55-5 | |
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202-680-6 | |
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154.25 | |
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2-[(4-methyl-1-cyclohex-3-enyl)]propan-2-ol | |
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α-terpineol | |
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Clear liquid | |
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Formulations |
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710 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) 3 = Unverified data of known source |
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220 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) 3 = Unverified data of known source |
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9.55 X 1002 | Calculated | - | |||||||
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2.98 | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
Moderate | ||||||||
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Not applicable | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) 5 = Verified data used for regulatory purposes |
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No dissociation | |||||||||||
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562.6 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) 3 = Unverified data of known source |
Highly volatile. If applied directly to plants or soil, drift is a concern & mitigation is advisable | ||||||||
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Degradation |
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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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Fate indices |
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Low risk | A5 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Based on LogP < 35 = Verified data used for regulatory purposes |
Low risk | |||||||||||||||||||||||||
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Known metabolites |
None
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Terrestrial ecotoxicology |
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5170 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) Rat3 = Unverified data of known source |
Low | ||||||||
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17.1 | A3 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) as vapour mg l⁻¹ air3 = Unverified data of known source |
Moderate | |||||||
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Aquatic ecotoxicology |
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6.6 | A3 A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) (EU - Pesticides database; EFSA Scientific Publications ) Oncorhynchus mykiss3 = Unverified data of known source |
Moderate | ||||||||
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General |
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High (class III) | - | - | ||||||||
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5170 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) Rat3 = Unverified data of known source |
Low | ||||||||
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Intramuscular LD₅₀ = 2000 mg kg⁻¹ | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) Mouse3 = Unverified data of known source |
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Health issues |
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No further information available |
Handling issues |
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Not explosive or oxidising | |||
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Health: H315, H319, H335 Environment: H411 |
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Not listed (Not listed) | |||
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alpha-terpineol | ||
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Record last updated: | 15/05/2024 |
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 |