Fenchlorphos (Ref: Dow ET-14) |
Last updated: 22/08/2024 |
(Also known as: ronnel; fenclofos; dermaphos; dermafos; Dow ET-57) |
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An organophosphate insecticide once used in veterinary medicine for parasite management but now mainly obsolete | |
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Considered obsolete but may be available in some countries | |
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1984, first registered USA | |
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Used for scabies management | |
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Cattle; Sheep |
Approval status |
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Not approved | |
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Not approved |
Chemical structure |
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None | |
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C₈H₈Cl₃O₃PS | |
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COP(=S)(OC)OC1=CC(=C(C=C1Cl)Cl)Cl | |
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- | |
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JHJOOSLFWRRSGU-UHFFFAOYSA-N | |
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InChI=1S/C8H8Cl3O3PS/c1-12-15(16,13-2)14-8-4-6(10)5(9)3-7(8)11/h3-4H,1-2H3 | |
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Yes |
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Common Name | Relationship | Link |
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fenchlorphos | - |
General status |
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Insecticide | |
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Organophosphate insecticide; Organothiophosphate insecticide; Phenyl organothiophosphate insecticide | |
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- | |
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- | |
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Synthetic | |
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Systemic. Acetylcholinesterase (AchE) inhibitor. | |
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[Cholinesterase, Inhibitor] | |
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299-84-3 | |
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206-082-6 | |
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112 | |
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- | |
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9298 | |
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015-052-00-X | |
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- | |
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None allocated | |
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No | |
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- | |
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321.55 | |
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O,O-dimethyl O-(2,4,5-trichlorophenyl) phosphorothioate | |
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O,O-dimethyl O-2,4,5-trichlorophenyl phosphorothioate | |
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O,O-dimethyl O-(2,4,5-trichlorophenyl) phosphorothioate | |
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- | |
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UK Environment Agency non-statutory standard for the protection of aquatic life in freshwater and saltwater: 0.03 µg l⁻¹ as annual average, 0.1 µg l⁻¹ as max acceptable conc. | |
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Colourless to light tan coloured crystalline powder |
Formulations |
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40.0 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
Low | ||||||||
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9080000 | L3 L = Pesticide manuals and hard copy reference books / other sources Acetone3 = Unverified data of known source |
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3470000 | L3 L = Pesticide manuals and hard copy reference books / other sources Chloroform3 = Unverified data of known source |
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5950000 | L3 L = Pesticide manuals and hard copy reference books / other sources Toluene3 = Unverified data of known source |
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5030000 | L3 L = Pesticide manuals and hard copy reference books / other sources Xylene3 = Unverified data of known source |
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41 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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97 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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7.59 X 1004 | Calculated | - | |||||||
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4.88 | Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
High | ||||||||
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1.58 | Q2 Q = Miscellaneous data from online 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 |
Highly volatile. If applied directly to plants or soil, drift is a concern & mitigation is advisable | ||||||||
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Degradation |
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. | ||||||||||
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Soil adsorption and mobility |
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- | Q2 Q = Miscellaneous data from online sources 2 = Unverified data of unknown source |
Non-mobile | |||||||
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10232 | ||||||||||
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Estimated | ||||||||||
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Fate indices |
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Known metabolites |
None
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Terrestrial ecotoxicology |
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500 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) Rat3 = Unverified data of known source |
Moderate | ||||||||
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> 3500 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) Anas platyrhynchos3 = Unverified data of known source |
Low | ||||||||
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Aquatic ecotoxicology |
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0.74 | R3 R = Peer reviewed scientific publications Oncorhynchus mykiss juvenile 48 hr3 = Unverified data of known source |
Moderate | ||||||||
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General |
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High (class III) | - | - | ||||||||
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500 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) Rat3 = Unverified data of known source |
Moderate | ||||||||
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2000 | V3 V = ChemID Online Databases; Chemspider; PubChem. (ChemID ) Rat3 = Unverified data of known source |
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List II | - | - | ||||||||
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May be absorbed through the skin | ||||||||||
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Mainly excreted in urine | Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
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Health issues |
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Harmful in contact skin or if swallowed |
Handling issues |
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Prevent generation of dust Incompatible with alkaline pesticides IMDG Transport Hazard Class 6.1 |
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Health: H302, H312 Environment: H400, H410 |
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II (Moderately hazardous) | |||
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UN2811 | |||
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Packaging Group III (minor danger) | |||
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fenchlorphos | ||
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fenchlorphos | ||
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Fenchlorphos | ||
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fenclorfos | ||
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fenchlorfos | ||
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fenchloorfos | ||
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Record last updated: | 22/08/2024 |
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 |