Diphacinone sodium
Last updated: 23/01/2023
(Also known as: diphacin sodium; diphenadione sodium)
The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.
Environmental fate
Ecotoxicity
Human health
An anticoagulant rodenticide
Rats; Mice; Voles; Squirrels; Other small rodents
Rats; Mice; Voles; Squirrels; Other small rodents
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Current
circa 1952
Not approved
Expired
No UK approval for use
EC Regulation 1107/2009 (repealing 91/414)
Not approved
Not applicable
Expired
Not applicavble
Yes
ATAustria
BEBelgium
BGBulgaria
CYCyprus
CZCzech Republic
DEGermany
DKDenmark
EEEstonia
ELGreece
 
 
 
 
 
 
 
 
 
ESSpain
FIFinland
FRFrance
HRCroatia
HUHungary
IEIreland
ITItaly
LTLithuania
LULuxembourg
 
 
 
 
 
 
 
 
 
LVLatvia
MTMalta
NLNetherlands
PLPoland
PTPortugal
RORomania
SESweden
SISlovenia
SKSlovakia
 
 
 
 
 
 
 
 
 
None
C₂₃H₁₅NaO₃
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DSRYAHGDJUHNRF-UHFFFAOYSA-M
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
Yes
Rodenticide
Indandione rodenticide
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-
Synthetic
Anti-coagulant with longer activity than warfarin
42721-99-3
255-918-6
131
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23707509
No data found
362.35
sodium 2-(diphenylacetyl)-1-oxo-1H-inden-3-olate
sodium 2-(diphenylacetyl)-1-oxo-1H-inden-3-olate
sodium 2-(diphenylacetyl)-1-oxo-1H-inden-3-olate
Marine Pollutant
-
Not applicable
Not applicable
Not applicable
Not applicable
-
Pale yellow powder
velsicol Bell laboratories
Ratindan Diphacine Ditrac Gold crest Kill-Ko Ramik
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
as diphacinone
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 3 = Unverified data of known source
as diphacinone
Low volatility
1.55 X 10-05
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
as diphacinone
Non-volatile
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5
S1 S = Expert judgement 1 = Estimated data with little or no verification
Non-persistent
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102
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
Stable
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Soil adsorption and mobility
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S3 S = Expert judgement 3 = Unverified data of known source
as diphacinone
Slightly mobile
2255
Other data source: 5477 mL g⁻¹ (US3)
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1.30
Calculated
Low leachability
3.11 X 10-02
Calculated
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Known groundwater metabolites
None
None
Terrestrial ecotoxicology
2.3
Rat as diphacinone
High
-
L2 L = Pesticide manuals and hard copy reference books / other sources 2 = Unverified data of unknown source
Rat as diphacinone
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0.1
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> 3158
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Anas platyrhynchos as diphacinone
Low
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2.8
Oncorhynchus mykiss as diphacinone
Moderate
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1.8
Daphnia magna as diphacinone
Moderate
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HUMAN HEALTH AND PROTECTION
High (class III)
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2.3
Rat as diphacinone
High
200
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Rat as diphacinone
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2.0
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Rat as diphacinone
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EU MRL pesticide database 
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Carcinogen
Endocrine disruptor
XNo, known not to cause a problem
A0 A = Chromosome aberration (EFSA database) 0 = No data
; B0 B = DNA damage/repair (EFSA database) 0 = No data
; C0 C = Gene mutation (EFSA database) 0 = No data
; D0 D = Genome mutation (EFSA database) 0 = No data
; E3 E = Unspecified genotoxicity type (miscellaneous data source) 3 = Negative
No data found
Reproduction / development effects
Acetyl cholinesterase inhibitor
Neurotoxicant
?Possibly, status not identified
XNo, known not to cause a problem
XNo, known not to cause a problem
Respiratory tract irritant
Skin irritant
Skin sensitiser
XNo, known not to cause a problem
XNo, known not to cause a problem
No data found
Eye irritant
Phototoxicant
 
✓Yes, known to cause a problem
No data found
 
Highly toxic Anticoagulant
No information available
Health: H300, H372
Ia (Extremely hazardous)
2588
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diphacinone sodium
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Record last updated:
23/01/2023
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