Ethidimuron (Ref: MET 1486 ) |
![]() Last updated: 19/01/2021 |
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(Also known as: sulfodiazol ; ustilan; sulfadiazole; BAY 107033) |
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Formerly used as a non-selective urea herbicide for non-crop areas | |
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Total vegetation | |
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Non-cropped areas such as rights-of-way, railways, pathways | |
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Obsolete | |
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1973, first reported |
UK regulatory status |
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Not approved | ||
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Expired | ||
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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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Expired | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Not applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Yes | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Also used in |
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Chemical structure |
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C₇H₁₂N₄O₃S₂ | |
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CCS(=O)(=O)C1=NN=C(S1)N(C)C(=O)NC | |
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No data | |
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KCOCSOWTADCKOL-UHFFFAOYSA-N | |
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InChI=1S/C7H12N4O3S2/c1-4-16(13,14)7-10-9-6(15-7)11(3)5(12)8-2/h4H2,1-3H3,(H,8,12) | |
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Yes |
General status |
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Herbicide | |
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Thiadiazolylurea | |
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Synthetic | |
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Inhibition of photosynthesis at photosystem II | |
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30043-49-3 | |
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250-010-6 | |
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557 | |
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122501 | |
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91596 | |
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264.33 | |
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N-[5-(ethanesulfonyl)-1,3,4-thiadiazol-2-yl]-N,N'-dimethylurea | |
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1-(5-ethylsulfonyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea | |
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N-[5-(ethylsulfonyl)-1,3,4-thiadiazol-2-yl]-N,N'-dimethylurea | |
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C2 | |
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7 | |
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Not applicable | |
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Not applicable | |
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Colourless crystalline solid |
Formulations |
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Usually supplied as a wettable powder or soluble concentrate |
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3000 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
High | ||||||||
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100 | L3 L = Pesticide manuals and hard copy reference books / other sources Hexane3 = Unverified data of known source |
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2000 | L3 L = Pesticide manuals and hard copy reference books / other sources Methanol3 = Unverified data of known source |
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6000 | L3 L = Pesticide manuals and hard copy reference books / other sources Isopropanol3 = Unverified data of known source |
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150000 | L3 L = Pesticide manuals and hard copy reference books / other sources Acetone3 = Unverified data of known source |
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156 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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217 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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2.69 X 1000 | Calculated | - | |||||||
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0.43 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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8.0 X 10-05 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Low volatility | ||||||||
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7.05 X 10-09 | 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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75 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Moderately persistent | |||||||
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General literature stated DT₅₀ as 3-4 months (L3) | ||||||||||
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Soil adsorption and mobility |
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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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> 5000 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) Rat3 = Unverified data of known source |
Low | ||||||||
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> 300 | L3 L = Pesticide manuals and hard copy reference books / other sources Coturnix japonica3 = Unverified data of known source |
Moderate | ||||||||
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44.0 | F2 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Anguilla japonica2 = Unverified data of unknown source |
Moderate | ||||||||
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Non-toxic | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Non-toxic | ||||||||
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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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5000 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) 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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Health: H317 Environment: H400, H410 |
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Xn - Harmful: R43 N - Dangerous for the environment: R50, R53 |
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S2, S24, S37, S60, S61 | |||
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U (Unlikely to present an acute hazard) | |||
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ethidimuron | ||
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Record last updated: | 19/01/2021 |
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 |