EPTC (Ref: R 1608) |
![]() Last updated: 19/01/2021 |
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(Also known as: ethyl dipropylthiocarbamate; epthame; eptam) |
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A herbicide used for pre-emergence control of annual and perennial grasses plus some broad-leaved weeds | |
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Couch; Sedges; Bermudagrass; Pigweed; Lambsquarters; Nightshade; Foxtails; Barnyard grass; bents | |
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Vegetables including peas, beans; Alfalfa; Forage legumes; Potatoes; Corn; Sweet potatoes | |
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Current | |
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circa 1957 |
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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USA |
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Chemical structure |
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C₉H₁₉NOS | |
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CCCN(CCC)C(=O)SCC | |
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No data | |
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GUVLYNGULCJVDO-UHFFFAOYSA-N | |
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InChI=1S/C9H19NOS/c1-4-7-10(8-5-2)9(11)12-6-3/h4-8H2,1-3H3 | |
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Yes |
General status |
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Herbicide | |
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Thiocarbamate | |
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Synthetic | |
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Selective, systemic absorbed by roots and shoots. Lipid synthesis inhibitor. | |
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759-94-4 | |
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212-073-8 | |
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155 | |
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041401 | |
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12968 | |
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189.3 | |
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S-ethyl dipropylcarbamothioate | |
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S-ethyl dipropyl(thiocarbamate) | |
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S-ethyl dipropylcarbamothioate | |
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Potential groundwater contaminant; PAN listed Highly Hazardous Chemical | |
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K3 | |
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15 | |
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Not applicable | |
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Not applicable | |
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- | |
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Pale yellow liquid |
Formulations |
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Usually formulated as an emulsifiable concentrate or as granules |
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370 | K4 K = Research datasets, e.g. Pandora, Demetra 4 = Verified data |
Moderate | ||||||||
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Miscible | C4 C = AGRITOX (click here ) Acetone4 = Verified data |
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Miscible | C4 C = AGRITOX (click here ) Benzene4 = Verified data |
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Miscible | C4 C = AGRITOX (click here ) Xylene4 = Verified data |
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Miscible | C4 C = AGRITOX (click here ) Ethanol4 = Verified data |
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Not applicable | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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127 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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200 | L2 L = Pesticide manuals and hard copy reference books / other sources 2 = Unverified data of unknown source |
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110 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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1.58 X 1003 | Calculated | - | |||||||
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3.2 | G4 G = Extension Toxicology network database EXTOXNET (click here ) 4 = Verified data |
High | ||||||||
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0.96 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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Not applicable | Q3 Q = Miscellaneous internet resources 3 = Unverified data of known source |
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No dissociation | |||||||||||
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4500 | G3 G = Extension Toxicology network database EXTOXNET (click here ) 3 = Unverified data of known source |
Highly volatile | ||||||||
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5.00 X 10-06 | 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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6 | M3 M = GLEAMS Model database (Groundwater Loading Effects of Agricultural Management Systems) (click here ) 3 = Unverified data of known source |
Non-persistent | |||||||
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18 | C4 C = AGRITOX (click here ) 4 = Verified data |
Non-persistent | ||||||||
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Literature DT₅₀ range 6-30 days in the field; Other sources: DT₅₀ 30-60 days (R3) | ||||||||||
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300 | C4 C = AGRITOX (click here ) 4 = Verified data |
Persistent | |||||||
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Soil adsorption and mobility |
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- | G3 G = Extension Toxicology network database EXTOXNET (click here ) 3 = Unverified data of known source |
Moderately mobile | |||||||
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300 | ||||||||||
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Other literature sources: 109-240 mL g⁻¹ (R3) | ||||||||||
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0.76 | R3 R = Peer reviewed scientific publications 3 = Unverified data of known source |
Moderately mobile | |||||||
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187.7 | ||||||||||
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0.905 | ||||||||||
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Literature data: Kf range 0.36-0.47 mL g⁻¹, Kfoc range 153-222 mL g⁻¹, 1/n range 0.826-0.984, soils=2 | ||||||||||
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Fate indices |
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2.17 | Calculated | Transition state | ||||||||||||||||||||||||||
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7.50 X 10-02 | Calculated | - | |||||||||||||||||||||||||
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Low | Calculated | - | ||||||||||||||||||||||||||
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Moderately mobile | Calculated | - |
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60 | P4 P = Other governments and regulators 4 = Verified data |
Low potential | |||||||
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Not available | - | |||||||||
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916 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) Rat3 = Unverified data of known source |
Moderate | ||||||||
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- | L2 L = Pesticide manuals and hard copy reference books / other sources Rat 21 day2 = Unverified data of unknown source |
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326 | - | |||||||||
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1000 | F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Anas platyrhynchos3 = Unverified data of known source |
Moderate | ||||||||
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14 | L3 L = Pesticide manuals and hard copy reference books / other sources Lepomis macrochirus3 = Unverified data of known source |
Moderate | ||||||||
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14 | L3 L = Pesticide manuals and hard copy reference books / other sources Daphnia magna3 = Unverified data of known source |
Moderate | ||||||||
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0.81 | P4 P = Other governments and regulators Daphnia magna4 = Verified data |
Moderate | ||||||||
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2.9 | F1 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Lemna gibba 96 hour1 = Estimated data with little or no verification |
Moderate | ||||||||
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5.46 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Pseudokirchneriella subcapitata4 = Verified data |
Moderate | ||||||||
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11.0 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Moderate | ||||||||
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267 | 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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916 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) Rat3 = Unverified data of known source |
Moderate | ||||||||
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2000 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
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3.8 | 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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Health: H302 | |||
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Xn - Harmful: R22 | |||
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S2, S23 | |||
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II (Moderately hazardous) | |||
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EPTC | ||
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EPTC | ||
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EPTC | ||
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EPTC | ||
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EPTC | ||
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EPTC | ||
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EPTC | ||
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EPTC | ||
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EPTC | ||
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EPTC | ||
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EPTC |
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 |