Malathion dicarboxylic acid |
Last updated: 21/04/2021 |
(Also known as: MDCA; malathion diacid) |
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Chemical transformation product | |
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Not applicable | |
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Not applicable | |
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Approval status |
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Chemical structure |
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The parent molelecule, malathion, is chiral. | |
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C₆H₁₁O₆PS₂ | |
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COP(=S)(OC)SC(CC(=O)O)C(=O)O | |
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No data | |
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NIUNKPWHNGMQRE-UHFFFAOYSA-N | |
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InChI=1S/C6H11O6PS2/c1-11-13(14,12-2)15-4(6(9)10)3-5(7)8/h4H,3H2,1-2H3,(H,7,8)(H,9,10) | |
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Yes |
General status |
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Soil | |
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Unclassified substance | |
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Synthetic | |
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Not applicable | |
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1190-28-9 | |
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Not applicable | |
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274.3 | |
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2-dimethoxyphosphinothioylsulfanylbutanedioic acid | |
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2-dimethoxyphosphinothioylsulfanylbutanedioic acid | |
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((dimethoxyphosphineothioyl)thio)-butanedioic acid | |
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Can be a metabolite of: |
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malathion | Soil | 0.617 | Major fraction |
Formulations |
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6.92 X 1000 | Calculated | - | |||||||
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0.84 | Q2 Q = Miscellaneous data from online sources 2 = Unverified data of unknown source |
Low | ||||||||
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1.56 | Q2 Q = Miscellaneous data from online sources 2 = Unverified data of unknown source |
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Degradation |
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3.3 | 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 |
Non-persistent | |||||||
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3.0 | 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 |
Non-persistent | ||||||||
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0.05 | 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-persistent | ||||||||
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13.2 | 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 |
Non-persistent | ||||||||
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EU dossier lab studies DT₅₀ range 1.2-5.3 days, DT₉₀ range 4.1-17.8 days; field study very rapid | ||||||||||
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17 | 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 |
Fast | ||||||||
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16 | 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 |
Slow | ||||||||
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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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0.324 | 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 |
Mobile | |||||||
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25.8 | ||||||||||
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0.978 | ||||||||||
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EU dossier Kf range 0.077-0.832 mL g⁻¹, Kfoc range 6-64 Ml/G, 1/n range 0.702-1.06, Soils=4 | ||||||||||
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Fate indices |
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-3.37 | Calculated | Low leachability | ||||||||||||||||||||||||||
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Known metabolites |
None
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Terrestrial ecotoxicology |
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Aquatic ecotoxicology |
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> 100 | A4 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 ) Unknown species4 = Verified data |
Low | ||||||||
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71 | 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 ) Daphnia magna5 = Verified data used for regulatory purposes |
Moderate | ||||||||
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General |
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High (class III) | - | - | ||||||||
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Health issues |
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No further information available |
Handling issues |
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No information available | |||
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Not listed (Not listed) | |||
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malathion dicarboxylic acid | ||
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Record last updated: | 21/04/2021 |
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 |