Benzfendizone (Ref: F 3686)
Last updated: 18/01/2023
(Also known as: FMC 143686)
Benzfendizone is a herbicide used to control broad-leaved weeds and grasses. Little is known about the environmental fate or ecotoxicology of this obsolete pesticide.
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 obsolete post-emergence herbicide for the control of grass and broad-leaved weeds
Potato desiccant; Cotton defoliant; Pigweed; Wild mustard; Velvetleaf; Foxtail; Johnssongrass
Orchards; Soybean; Cotton; Potatoes
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Considered obsolete but may be available in some countries
1998
Not approved
Not applicable
No UK approval for use
EC Regulation 1107/2009 (repealing 91/414)
Not approved
Not applicable
Not applicable
Not applicable
No
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
 
 
 
 
 
 
 
 
 
ISIceland
NONorway
 
 
 
 
 
 
 
 
 
A chiral molecule.Substance is racemic.
C₂₅H₂₅F₃N₂O₆
CCC1=CC(=C(C=C1)COC2=CC=C(C=C2)N3C(=O)C=C(N(C3=O)C)C(F)(F)F)OC(C)C(=O)OC
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LYPWWQLKWQNQKV-UHFFFAOYSA-N
InChI=1S/C25H25F3N2O6/c1-5-16-6-7-17(20(12-16)36-15(2)23(32)34-4)14-35-19-10-8-18(9-11-19)30-22(31)13-21(25(26,27)28)29(3)24(30)33/h6-13,15H,5,14H2,1-4H3
Yes
Herbicide
Dicarboximide herbicide; Phenyluracil herbicide
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Synthetic
Inhibition of protoporphyrinogen oxidase
158755-95-4
816-462-9
None allocated
Not listed
15457485
No data found
506.47
rac-methyl (2R)-2-[2-({4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-3,6-dihydropyrimidin-1(2H)-yl]phenoxy}methyl)-5-ethylphenoxy]propanoate
methyl (RS)-2-(5-ethyl-2-{4-[1,2,3,6-tetrahydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]phenoxymethyl}phenoxy)propionate
methyl 2-[2-[[4-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1(2H)-pyrimidinyl]phenoxy]methyl]-5-ethylphenoxy]propanoate
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E
14
Not applicable
Not applicable
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Obsolete - not thought to be commercially available for crop protection applications
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480
Q2 Q = Miscellaneous data from online sources 2 = Unverified data of unknown source
Predicted
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1.74 X 1004
Calculated
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4.24
Q2 Q = Miscellaneous data from online sources 2 = Unverified data of unknown source
Predicted
High
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1.32
Q2 Q = Miscellaneous data from online sources 2 = Unverified data of unknown source
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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
4847
Estimated
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Cannot be calculated
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None
Terrestrial ecotoxicology
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HUMAN HEALTH AND PROTECTION
High (class III)
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List II
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EU MRL pesticide database 
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Carcinogen
Endocrine disruptor
No data found
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
; E0 E = Unspecified genotoxicity type (miscellaneous data source) 0 = No data
No data found
Reproduction / development effects
Acetyl cholinesterase inhibitor
Neurotoxicant
No data found
XNo, known not to cause a problem
No data found
Respiratory tract irritant
Skin irritant
Skin sensitiser
No data found
No data found
No data found
Eye irritant
Phototoxicant
 
No data found
No data found
 
No further information available
No information available
Not classified: Obsolete
Not listed
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benzfendizone
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Record last updated:
18/01/2023
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