Dicrotophos (Ref: OMS 253) |
![]() Last updated: 11/01/2021 |
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(Also known as: ENT 24482; SD 3546; carbomicron ; dicrotofos; C709) |
SUMMARY |
Dicrotofos is an organophosphate insecticide that is not approved for use in the EU. It has a high aqueous solubility, quite volatile and, based on its chemical properties, it may leach to groundwater. It is not usually persistent in soils. It is highly toxic to mammals and has a low tendency to bioaccumulate. Dicrotofos is also an acetyl cholinesterase inhibitor. It has a highly toxicity to most biodiversity including honeybees and earthworms. However, it appears to be slightly less toxic to fish. |
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An insecticide used to control sucking and chewing pests, boring insects and mites | |
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Aphids; Thrips; Spider mites; Fleahoppers; Sink bugs; Lygus bugs; Caterpillars; Boll weevils; Elm bark bettle | |
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Coffee; Cotton; Rice; Pecans; Non-food producing and ornamental trees | |
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Current | |
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circa 1965 |
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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Isomeric existing in the E- and Z-forms. The E-isomer is more insecticidally active than the Z-isomer. | |
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C₈H₁₆NO₅P | |
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CC(=CC(=O)N(C)C)OP(=O)(OC)OC | |
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O=P(O/C(=C/C(=O)N(C)C)C)(OC)OC | |
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VEENJGZXVHKXNB-VOTSOKGWSA-N | |
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InChI=1S/C8H16NO5P/c1-7(6-8(10)9(2)3)14-15(11,12-4)13-5/h6H,1-5H3/b7-6+ | |
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Yes |
General status |
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Insecticide, Acaricide | |
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Organophosphate | |
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Synthetic | |
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Systemic with contact and stomach action. Acetylcholinesterase (AChE) inhibitor. | |
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141-66-2 | |
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205-494-3 | |
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299 | |
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035201 | |
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5371560 | |
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237.19 | |
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(2E)-4-(dimethylamino)-4-oxobut-2-en-2-yl dimethyl phosphate | |
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(E)-2-dimethylcarbamoyl-1-methylvinyl dimethyl phosphate | |
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(1E)-3-(dimethylamino)-1-methyl-3-oxo-1-propenyl dimethyl phosphate | |
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Potential groundwater pollutant; Marine Pollutant | |
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- | |
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Not applicable | |
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Not applicable | |
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1B | |
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Not applicable | |
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Leucoptera meyricki, Lygus lineolaris, Panonychus ulmi, Psylla pyricola, Bemisia tabaci, Boophilus microplus, many others | |
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Yellow brown liquid |
Formulations |
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Often supplied as a water soluble concentrate or ULV spray. |
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1000000 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) at 25 °C3 = Unverified data of known source |
High | ||||||||
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Miscible | L3 L = Pesticide manuals and hard copy reference books / other sources Acetone3 = Unverified data of known source |
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Miscible | L3 L = Pesticide manuals and hard copy reference books / other sources Xylene3 = Unverified data of known source |
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Miscible | L3 L = Pesticide manuals and hard copy reference books / other sources Dichloromethane3 = Unverified data of known source |
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3.16 X 10-01 | Calculated | - | |||||||
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-0.5 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Low | ||||||||
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1.22 | L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source |
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9.3 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Moderately volatile | ||||||||
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5.10 X 10-06 | H4 H = The US ARS pesticide properties database (click here ) 4 = Verified data |
Non-volatile | ||||||||
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Degradation |
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28 | M4 M = GLEAMS Model database (Groundwater Loading Effects of Agricultural Management Systems) (click here ) 4 = Verified data |
Non-persistent | |||||||
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Best available data | ||||||||||
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1.0 | R3 R = Peer reviewed scientific publications 3 = Unverified data of known source |
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Cotton leaves, n=1 | ||||||||||
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Soil adsorption and mobility |
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- | M3 M = GLEAMS Model database (Groundwater Loading Effects of Agricultural Management Systems) (click here ) 3 = Unverified data of known source |
Moderately mobile | |||||||
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75 | ||||||||||
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Fate indices |
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3.08 | Calculated | High leachability | ||||||||||||||||||||||||||
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2.83 X 10-01 | Calculated | - | |||||||||||||||||||||||||
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Low | Calculated | - | ||||||||||||||||||||||||||
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Moderately mobile | Calculated | - |
Key metabolites |
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Soil | - | - |
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75 | Q2 Q = Miscellaneous internet resources Estimated2 = Unverified data of unknown source |
Low potential | |||||||
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Not available | - | |||||||||
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17 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
High | ||||||||
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0.05 | L2 L = Pesticide manuals and hard copy reference books / other sources Rat 2 year2 = Unverified data of unknown source |
High | |||||||
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9.63 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Anas platyrhynchos4 = Verified data |
High | ||||||||
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6.3 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Oncorhynchus mykiss4 = Verified data |
Moderate | ||||||||
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0.013 | F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Daphnia magna3 = Unverified data of known source |
High | ||||||||
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0.00099 | F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Daphnia magna3 = Unverified data of known source |
High | ||||||||
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0.077 | F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Americamysis bahia3 = Unverified data of known source |
High | ||||||||
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0.068 | 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 |
High | ||||||||
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0.0003 | R4 R = Peer reviewed scientific publications Megachile rotundata4 = Verified data |
High | |||||||
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Contact | ||||||||||
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0.685 | R4 R = Peer reviewed scientific publications Trigona spinipes4 = Verified data |
High | |||||||
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Contact | ||||||||||
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General |
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High (class III) | - | - | ||||||||
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17 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
High | ||||||||
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110 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
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0.09 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat3 = Unverified data of known source |
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List I; List II | - | - | ||||||||
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Low risk to Europeans as no longer approved for use | |||||||||
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Rapidly absorbed through the skin, PPE/PPC essential | ||||||||||
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Health issues |
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Toxic if ingested, inhaled or by skin contact |
Handling issues |
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No information available | |||
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Health: H300, H311 Environment: H400, H410 |
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T+ - Very toxic: R28 T - Toxic: R24 N - Dangerous for the environment: R50, R53 |
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S1/2, S28, S36/37, S45, S60, S61 | |||
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Ib (Highly hazardous / Highly hazardous) | |||
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3018 | |||
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dicrotophos | ||
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dicrotophos | ||
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Dicrotophos | ||
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dicrotophos | ||
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dicrotofos | ||
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dicrotofos | ||
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dicrotophos | ||
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dikrotofos | ||
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dicrotofos |
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 |