Alpha-pinene |
Last updated: 19/05/2024 |
(Also known as: Tea tree oil extract; Oil of Melaleuca; TTO; monoterpenes) |
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A component (1-6%) of Tea tree oil which is used to control various fungal pathogens on a wide range of crops | |
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Current | |
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1920s, Tea tree oil first reported | |
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Approval status |
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Chemical structure |
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Pinene has two structural isomers (α-pinene and β-pinene) and both isomers have enantiomers such as (−)-α-pinene, (+)-α-pinene, (−)-β-pinene and (+)-β-pinene | |
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C₁₀H₁₆ | |
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CC1=CCC2CC1C2(C)C | |
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No data | |
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GRWFGVWFFZKLTI-UHFFFAOYSA-N | |
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InChI=1S/C10H16/c1-7-4-5-8-6-9(7)10(8,2)3/h4,8-9H,5-6H2,1-3H3 | |
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Yes |
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Common Name | Relationship | Link |
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alpha-pinene | - |
General status |
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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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80-56-8 | |
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201-291-9 | |
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136.24 | |
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2,6,6-trimethylbicyclo[3.1.1]hept-2-ene | |
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α-pinene | |
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Clear liquid | |
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Formulations |
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2.49 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) 3 = Unverified data of known source |
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156 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) 3 = Unverified data of known source |
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6.76 X 1004 | Calculated | - | |||||||
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4.83 | 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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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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6.32 X 1005 | 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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- | 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 ) 3 = Unverified data of known source |
Non-mobile | |||||||
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6495 | ||||||||||
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EU dossier - estimated | ||||||||||
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Fate indices |
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Known metabolites |
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Terrestrial ecotoxicology |
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3700 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) Rat3 = Unverified data of known source |
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> 1000 | Q2 Q = Miscellaneous data from online sources Expert judgement2 = Unverified data of unknown source |
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> 100 | Q2 Q = Miscellaneous data from online sources Expert judgement2 = Unverified data of unknown source |
Low | ||||||||
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Aquatic ecotoxicology |
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41.0 | 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 ) Daphnia magna3 = Unverified data of known source |
Moderate | ||||||||
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General |
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Low (class I) | - | - | ||||||||
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3700 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) Rat3 = Unverified data of known source |
Low | ||||||||
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Health issues |
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No further information available |
Handling issues |
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Not explosive or oxidising Flammable IMDG Transport Hazard Class 3 |
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Health: H302, H304, H315, H317, H318 Handling: H226 Environment: H400, H410 |
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Not listed (Not listed) | |||
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UN2368 | |||
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Packaging Group III (minor danger) | |||
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alpha-pinene | ||
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Record last updated: | 19/05/2024 |
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 |