Diphacinone sodium |
![]() Last updated: 17/01/2021 |
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(Also known as: diphacin sodium; diphenadione sodium) |
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An anticoagulant rodenticide | |
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Rats; Mice; Voles; Squirrels; Other small rodents | |
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Rats; Mice; Voles; Squirrels; Other small rodents | |
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Current | |
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circa 1952 |
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 applicable | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Expired | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Not applicavble | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Yes | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Also used in |
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Australia, USA |
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Chemical structure |
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C₂₃H₁₅NaO₃ | |
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No data | |
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DSRYAHGDJUHNRF-UHFFFAOYSA-M | |
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InChI=1S/C23H16O3.Na/c24-21-17-13-7-8-14-18(17)22(25)20(21)23(26)19(15-9-3-1-4-10-15)16-11-5-2-6-12-16;/h1-14,19,24H;/q;+1/p-1 | |
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Yes |
General status |
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Rodenticide | |
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Indandione anticoagulant | |
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Synthetic | |
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Anti-coagulant with longer activity than warfarin | |
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42721-99-3 | |
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362.35 | |
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sodium 2-(diphenylacetyl)-1-oxo-1H-inden-3-olate | |
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sodium 2-(diphenylacetyl)-1-oxo-1H-inden-3-olate | |
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sodium 2-(diphenylacetyl)-1-oxo-1H-inden-3-olate | |
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Marine Pollutant | |
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Not applicable | |
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Not applicable | |
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Not applicable | |
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Not applicable | |
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Pale yellow powder |
Formulations |
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Available in a wide variety of formulations including meal, pellet, wax block, liquid bait and concentrate formulations. |
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7.08 X 1004 | Calculated | - | |||||||
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4.85 | V3 V = ChemID online databases / IPCS INCHEM (ChemID; IPCS INCHEM ) as diphacinone3 = Unverified data of known source |
High | ||||||||
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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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1.37 X 10-05 | L3 L = Pesticide manuals and hard copy reference books / other sources as diphacinone3 = Unverified data of known source |
Low volatility | ||||||||
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1.55 X 10-05 | L3 L = Pesticide manuals and hard copy reference books / other sources as diphacinone3 = Unverified data of known source |
Non-volatile | ||||||||
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Degradation |
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5 | S1 S = Expert judgement 1 = Estimated data with little or no verification |
Non-persistent | |||||||
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102 | F3 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) 3 = Unverified data of known source |
Persistent | ||||||||
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Best available data as diphacinone rather than the odium salt- literature variable DT₅₀ 1-150 days | ||||||||||
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Stable | C4 C = AGRITOX (click here ) 4 = Verified data |
Stable | |||||||
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Soil adsorption and mobility |
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- | S3 S = Expert judgement as diphacinone3 = Unverified data of known source |
Slightly mobile | |||||||
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2255 | ||||||||||
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Other data source: 5477 mL g⁻¹ (US3) | ||||||||||
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Fate indices |
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1.30 | Calculated | Low leachability | ||||||||||||||||||||||||||
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3.11 X 10-02 | Calculated | - | |||||||||||||||||||||||||
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2.3 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Rat as diphacinone4 = Verified data |
High | ||||||||
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- | L2 L = Pesticide manuals and hard copy reference books / other sources as diphacinone2 = Unverified data of unknown source |
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0.1 | - | |||||||||
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> 3158 | L3 L = Pesticide manuals and hard copy reference books / other sources Anas platyrhynchos as diphacinone3 = Unverified data of known source |
Low | ||||||||
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2.8 | 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 mykiss as diphacinone4 = Verified data |
Moderate | ||||||||
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1.8 | J4 J = Pesticide Action Network database (click here ) Daphnia magna as diphacinone4 = Verified data |
Moderate | ||||||||
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General |
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High (class III) | - | - | ||||||||
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2.3 | F4 F = U.S. EPA ECOTOX database / U.S. EPA pesticide fate database / Miscellaneous WHO documents (US EPA Databases Related to Pesticide Risk Assessment ) Rat as diphacinone4 = Verified data |
High | ||||||||
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200 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat as diphacinone3 = Unverified data of known source |
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2.0 | L3 L = Pesticide manuals and hard copy reference books / other sources Rat as diphacinone3 = Unverified data of known source |
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Health issues |
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Highly toxic Anticoagulant |
Handling issues |
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No information available | |||
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Health: H300, H372 | |||
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T+ - Very toxic: R28 T - Toxic: R48/23/24/25 |
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S1/2, S36/37, S45 | |||
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Ia (Extremely hazardous) | |||
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2588 | |||
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diphacinone sodium | ||
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Record last updated: | 17/01/2021 |
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 |