Metsulfuron |
![]() Last updated: 12/01/2021 |
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(Also known as: metsu 453) |
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A herbicide used to control weeds mainly in cereals and land temporarily removed from production, used as the methyl variant. It is also be a pesticide transformation product. | |
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Some annual grasses; Broad-leaved weeds | |
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Cereals; Land removed from production | |
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Current | |
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1984 |
UK regulatory status |
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Approved | ||
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31/03/2026 | ||
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Buffer probably required in UK - see product label |
EC Regulation 1107/2009 (repealing 91/414) |
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Approved | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Slovenia/Sweden | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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31/03/2023 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Yes - two 'Persistent-Bioaccumulative-Toxic' criteria | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Yes | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Also used in |
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Chemical structure |
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C₁₃H₁₃N₅O₆S | |
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CC1=NC(=NC(=N1)OC)NC(=O)NS(=O)(=O)C2=CC=CC=C2C(=O)O | |
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No data | |
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UWHURBUBIHUHSU-UHFFFAOYSA-N | |
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InChI=1S/C13H13N5O6S/c1-7-14-11(17-13(15-7)24-2)16-12(21)18-25(22,23)9-6-4-3-5-8(9)10(19)20/h3-6H,1-2H3,(H,19,20)(H2,14,15,16,17,18,21) | |
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Yes |
General status |
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Herbicide, Metabolite | |
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Soil | |
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Sulfonylurea | |
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Synthetic | |
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Selective, systemic with contact and residual action. Inhibits plant amino acid synthesis - acetohydroxyacid synthase AHAS | |
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79510-48-8 | |
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441 | |
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91730 | |
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367.34 | |
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2-{[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)carbamoyl]sulfamoyl}benzoic acid | |
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2-(4-methoxy-6-methyl-1,3,5-triazin-2-ylcarbamoylsulfamoyl)benzoic acid | |
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2-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]amino]sulfonyl]benzoic acid | |
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B | |
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2 | |
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Not applicable | |
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Not applicable | |
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White solid | |
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Can be a metabolite of: |
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metsulfuron-methyl | Soil | - | - |
Formulations |
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Normally used as the methyl variant. |
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172 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) at 25 °C3 = Unverified data of known source |
Moderate | ||||||||
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5.01 X 1001 | Calculated | - | |||||||
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1.7 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) 3 = Unverified data of known source |
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3.99 X 10-08 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) at 25 °C3 = Unverified data of known source |
Low volatility | ||||||||
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2.38 X 10-11 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) at 25 °C3 = Unverified data of known source |
Non-volatile | ||||||||
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Degradation |
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Soil adsorption and mobility |
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Fate indices |
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Key metabolites |
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Soil | 0.170 | Major fraction; Relevant | |||||
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Soil | 0.100 | Major fraction; Relevant | |||||
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Soil | 0.170 | Major fraction; Relevant | |||||
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Soil | 0.470 | Major fraction; Relevant | |||||
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Soil | 0.330 | Major fraction; Relevant |
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Low risk | Q3 Q = Miscellaneous internet resources Based on LogP < 33 = Unverified data of known source |
Low risk | |||||||
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> 5000 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) Rat3 = Unverified data of known source |
Low | ||||||||
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> 5000 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) Anas platyrhynchos3 = Unverified data of known source |
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> 150 | 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 ) Oncorhynchus mykiss as methyl variant4 = Verified data |
Low | ||||||||
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150 | 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 ) Daphnia magna as methyl variant4 = Verified data |
Low | ||||||||
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> 25 | 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 ) as the methyl variant4 = Verified data |
Moderate | |||||||
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> 44.3 | 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 ) as the methyl variant4 = Verified data |
Moderate | ||||||||
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> 1000 | 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 ) Eisenia foetida as methyl variant4 = Verified data |
Low | ||||||||
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General |
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High (class III) | - | - | ||||||||
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> 5000 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) Rat3 = Unverified data of known source |
Low | ||||||||
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2000 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) Rat3 = Unverified data of known source |
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0.22 | 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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None allocated | 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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0.7 | 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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Health issues |
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No further information available |
Handling issues |
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No information available | |||
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Environment: H400, H410 | |||
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N - Dangerous for the environment: R50, R53 | |||
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S60, S61 | |||
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NL (Not listed) | |||
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metsulfuron | ||
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Record last updated: | 12/01/2021 |
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 |