Diclomezine (Ref: F-850) |
![]() Last updated: 11/01/2021 |
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(Also known as: SF-7531) |
SUMMARY |
Diclomezine is a fungicide that is not approved for use in the EU. It has a low aqueous solubility and is volatile. There are significant gaps in reported fate data. It is highly toxic to mammals. Diclomezine moderately toxic to honeybees but is relatively non-toxic to most aquatic organisms and birds. |
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An unclassified fungicide used to control various pathogens in rice and other crops | |
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Twig rot; Rice sheath blight; White mildew | |
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Rice; Peanuts; Turf; cereals; Oilseeds | |
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Unknown | |
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1988, first introduced Japan |
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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Also used in |
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Chemical structure |
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C₁₁H₈Cl₂N₂O | |
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CC1=C(C=C(C=C1Cl)C2=NNC(=O)C=C2)Cl | |
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No data | |
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UWQMKVBQKFHLCE-UHFFFAOYSA-N | |
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InChI=1S/C11H8Cl2N2O/c1-6-8(12)4-7(5-9(6)13)10-2-3-11(16)15-14-10/h2-5H,1H3,(H,15,16) | |
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Yes |
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Common Name | Relationship | Link |
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diclomezine | - | ![]() |
General status |
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Fungicide | |
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Unclassified | |
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Synthetic | |
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Curative and protectant activity, works by inhibiting the formation of septum and mycelial growth. | |
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62865-36-5 | |
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None allocated | |
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93341 | |
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255.1 | |
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6-(3,5-dichloro-4-methylphenyl)pyridazin-3(2H)-one | |
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6-(3,5-dichlorophenyl-p-tolyl)pyridazin-3(2H)-one | |
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Not applicable | |
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Not applicable | |
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Not applicable | |
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37 | |
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Colourless crystalline solid |
Formulations |
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Supplied in a variety of formulations including soluble concentrates and wettable powders |
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0.74 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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2000 | L3 L = Pesticide manuals and hard copy reference books / other sources Acetone3 = Unverified data of known source |
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3400 | L3 L = Pesticide manuals and hard copy reference books / other sources Methanol3 = Unverified data of known source |
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252 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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4.47 X 1002 | Calculated | - | |||||||
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2.65 | Q2 Q = Miscellaneous internet resources 2 = Unverified data of unknown source |
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1.44 | Q2 Q = Miscellaneous internet resources 2 = Unverified data of unknown source |
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0.013 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Low volatility | ||||||||
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Degradation |
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Soil adsorption and mobility |
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- | Q2 Q = Miscellaneous internet resources 2 = Unverified data of unknown source |
Slightly mobile | |||||||
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654 | ||||||||||
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Estimated | ||||||||||
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Fate indices |
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Cannot be 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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> 12000 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
Low | ||||||||
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98.9 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
High | |||||||
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> 7000 | L3 L = Pesticide manuals and hard copy reference books / other sources Colinus virginianus3 = Unverified data of known source |
Low | ||||||||
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> 300 | L3 L = Pesticide manuals and hard copy reference books / other sources Cyprinus carpio3 = Unverified data of known source |
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> 300 | L3 L = Pesticide manuals and hard copy reference books / other sources Daphnia magna3 = Unverified data of known source |
Low | ||||||||
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> 100 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Low | |||||||
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> 100 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Low | ||||||||
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General |
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High (class III) | - | - | ||||||||
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> 12000 | 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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0.82 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
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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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U (Unlikely to present an acute hazard) | |||
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diclomezine | ||
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dichlomezyna | ||
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Record last updated: | 11/01/2021 |
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 |