Trans-citral |
Last updated: 25/05/2024 |
(Also known as: alpha-citral; geranial; geranaldehyde; (E)-citral; citral) |
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Citral is a unsaturated aldehyde, commonly known for its lemon-like odour with a mild repellency activity for some insect species | |
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1948, first registered USA; 2011, re-registered as a biopesticide | |
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Chemical structure |
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Citral is the common name for two geometric isomers with separate names; the E-isomer is named trans-citral whilst the Z-isomer is known as neral (cis-citral) | |
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C₁₀H₁₆O | |
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CC(=CCCC(=CC=O)C)C | |
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CC(=CCC/C(=C/C=O)/C)C | |
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WTEVQBCEXWBHNA-JXMROGBWSA-N | |
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InChI=1S/C10H16O/c1-9(2)5-4-6-10(3)7-8-11/h5,7-8H,4,6H2,1-3H3/b10-7+ | |
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General status |
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Food additive | |
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Plant-derived substance | |
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Natural | |
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Non-toxic, repellency via strong odour | |
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5392-40-5 | |
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226-394-6 | |
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040510 | |
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638011 | |
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152.23 | |
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(2E)-3,7-dimethylocta-2,6-dienal | |
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(2E)-3,7-dimethylocta-2,6-dienal | |
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(2E)-3,7-dimethylocta-2,6-dienal | |
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FEMA=2303; May be approved for use under non-pesticide specific regulations. | |
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Pale yellow liquid with lemon-like odour | |
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Formulations |
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100 | Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
Moderate | ||||||||
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-10 | Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
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229 | Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
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91 | Q3 Q = Miscellaneous data from online sources closed cup3 = Unverified data of known source |
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2.82 X 1003 | Calculated | - | |||||||
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3.45 | Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
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0.893 | Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
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1.486 | Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
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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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Known metabolites |
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Terrestrial ecotoxicology |
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Aquatic ecotoxicology |
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General |
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Health issues |
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Allergic reactions are quite common |
Handling issues |
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When heated to decomposition it will emit acrid smoke and irritating fumes IMDG Transport hazard Class 6.1 |
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Health: H315, H317 | |||
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Not listed (Not listed) | |||
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UN2810 | |||
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trans-citral | ||
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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 |