Flucarbazone-sodium (Ref: BAY MKH 6562) |
![]() Last updated: 31/05/2018 |
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(Also known as: MKH 6562) |
SUMMARY |
Flucarbazone-sodium is a post-emergency herbicide that is not approved for use in the EU. It is highly soluble in water, semi-volatile but poses a high risk of leaching to groundwater. It is non-persistent in soils but may be very persistent in aquatic systems. Whilst it has a low mammalian toxicity it may bioaccumulate. It is an eye irritant but no other serious human health issues have been identified. It is moderately toxic to birds, most aquatic organims and earthworms but considered to be non-toxic to honeybees. |
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Used for selective post-emergence control for grass weeds and some broad-leaved weeds on cereals | |
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Wild oats, foxtail, grasses and soem broad-leaved weeds | |
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Spring wheat including durum, winter wheat | |
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- | |
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Current | |
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2000 |
UK regulatory status |
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Not approved | ||
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Not applicable | ||
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No UK approval for use |
EC Regulation 1107/2009 (repealing 91/414) |
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Not approved | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Yes | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Also used in |
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USA, Canada |
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Chemical structure |
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C₁₂H₁₀F₃N₄NaO₆S | |
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CN1C(=NN(C1=O)C(=NS(=O)(=O)C2=CC=CC=C2OC(F)(F)F)[O-])OC.[Na+] | |
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No data | |
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UOUXAYAIONPXDH-UHFFFAOYSA-M | |
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InChI=1S/C12H11F3N4O6S.Na/c1-18-10(24-2)16-19(11(18)21)9(20)17-26(22,23)8-6-4-3-5-7(8)25-12(13,14)15;/h3-6H,1-2H3,(H,17,20);/q;+1/p-1 | |
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Yes |
General status |
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Herbicide | |
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Sulfonylurea | |
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- | |
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Synthetic | |
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Inhibits plant amino acid synthesis - acetohydroxyacid synthase AHAS., Absorbed through roots and foliage and translocated. Exhibits some residual activity. | |
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181274-17-9 | |
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- | |
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658 | |
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114009 | |
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12056760 | |
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418.28 | |
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sodium 4,5-dihydro-3-methoxy-4-methyl-5-oxo-N-{[2-(trifluoromethoxy)phenyl]sulfonyl}-1H-1,2,4-triazole-1-carboximidate | |
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1H-1,2,4-triazole-1-carboxamide, 4,5-dihydro-3-methoxy-4-methyl-5-oxo-N-((2-(trifluoromethoxy)phenyl)sulfonyl)-, sodium salt | |
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- | |
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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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- | |
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Colourless crystalline powder |
Formulations |
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44000 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
High | ||||||||
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200 | L3 L = Pesticide manuals and hard copy reference books / other sources Decomposes3 = Unverified data of known source |
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1.45 X 10-02 | Calculated | - | |||||||
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-1.84 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) 4 = Verified data |
Low | ||||||||
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1.59 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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1.9 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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Data for free acid, Strong acid | |||||||||||
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1.0 X 10-06 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Low volatility | ||||||||
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1.0 X 10-11 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Non-volatile | ||||||||
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Degradation |
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17 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Non-persistent | |||||||
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12.3 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) 4 = Verified data |
Non-persistent | ||||||||
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Literature DT₅₀ values range 9-22 days | ||||||||||
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Stable | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) 4 = Verified data |
Stable | |||||||
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Stable | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) 4 = Verified data |
Stable | |||||||
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Soil adsorption and mobility |
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- | DW4 DW = Don Wauchope personal database for Pka data: Wauchope, R. D. and Edwards, J. Dissociation constants for pesticide active ingredients: a database and comparison with predicted values. MS in preparation 4 = Verified data |
Mobile | |||||||
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20 | ||||||||||
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Fate indices |
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2.94 | Calculated | High leachability | ||||||||||||||||||||||||||
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1.20 X 10-01 | Calculated | - | |||||||||||||||||||||||||
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Low | Calculated | - | ||||||||||||||||||||||||||
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Mobile | Calculated | - |
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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 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
Low | ||||||||
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> 1000 | L3 L = Pesticide manuals and hard copy reference books / other sources Mice3 = Unverified data of known source |
Moderate | |||||||
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2000 | L3 L = Pesticide manuals and hard copy reference books / other sources Colinus virginianus3 = Unverified data of known source |
Moderate | ||||||||
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96.7 | L3 L = Pesticide manuals and hard copy reference books / other sources Oncorhynchus mykiss3 = Unverified data of known source |
Moderate | ||||||||
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2.75 | F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Oncorhynchus mykiss3 = Unverified data of known source |
Moderate | ||||||||
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109 | L3 L = Pesticide manuals and hard copy reference books / other sources Daphnia magna3 = Unverified data of known source |
Low | ||||||||
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0.0126 | L3 L = Pesticide manuals and hard copy reference books / other sources Lemna gibba3 = Unverified data of known source |
Moderate | ||||||||
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6.4 | L3 L = Pesticide manuals and hard copy reference books / other sources Pseudokirchneriella subcapitata3 = Unverified data of known source |
Moderate | ||||||||
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> 200 | F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) 3 = Unverified data of known source |
Low | ||||||||
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1000 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Moderate | ||||||||
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General |
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High (class III) | - | - | ||||||||
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> 5000 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
Low | ||||||||
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5000 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
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> 5.13 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
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List II | - | - | ||||||||
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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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Xi - Irritant: R36 | |||
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U (Unlikely to present an acute hazard) | |||
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flucarbazone-sodium | ||
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flucarbazona sodio | ||
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flukarbazon sodowy | ||
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Record last updated: | 31/05/2018 |
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 |