Butafenacil (Ref: CGA 276854)
Last updated: 19/08/2023
(Not known by any other names)
Butafenacil is a herbicide used to control annual and perennial broad-leaved weeds. Iit has a low aqueous solubility and a low volatility. It is not usually persistent in soil systems but may be moderately persistent in aquatic systems, depending on local conditions. It is moderately toxic to honeybees and most aquatic species but less so to birds and earthworms. It has a low oral mammalian toxicity and is an irritant,
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
Used to control annual and perennial broad-leaved weeds in fruit and other crops
Annual ryegrass; Capeweed; Clover; Sowthistle; Field beans; Poppies; Prickly lettuce; Wild radish; Rocket; Paradoxa grass; Fathen; Bermudagrass
Cotton; Fruit including apples, pears, citrus, plums, apricots, cherries, grapes; Garlic & onions; Non-cropped land; Cereals incuding wheat
-
Current
circa 2000
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
 
 
 
 
 
 
 
 
 
Australia; Argentina; Brazil; Japan; Thailand
None
C₂₀H₁₈ClF₃N₂O₆
CC(C)(C(=O)OCC=C)OC(=O)C1=C(C=CC(=C1)N2C(=O)C=C(N(C2=O)C)C(F)(F)F)Cl
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JEDYYFXHPAIBGR-UHFFFAOYSA-N
InChI=1S/C20H18ClF3N2O6/c1-5-8-31-17(29)19(2,3)32-16(28)12-9-11(6-7-13(12)21)26-15(27)10-14(20(22,23)24)25(4)18(26)30/h5-7,9-10H,1,8H2,2-4H3
Yes
Cambridge Crystallographic Data Centre diagrams
Common Name
Relationship
Link
butafenacil
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Herbicide
Uracil herbicide; Phenyluracil herbicide
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-
Synthetic
Inhibitor of protoporphyrinogen oxidase (PPO), non-selective, contact action absorbed by foliage.
134605-64-4
603-837-4
None allocated
122004
11826859
No data found
474.81
2-methyl-1-oxo-1-(prop-2-en-1-yloxy)propan-2-yl 2-chloro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-3,6-dihydropyrimidin-1(2H)-yl]benzoate
1-(allyloxycarbonyl)-1-methylethyl 2-chloro-5-[1,2,3,6-tetrahydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]benzoate
1,1-dimethyl-2-oxo-2-(2-propenyloxy)ethyl 2-chloro-5-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1(2H)-pyrimidinyl]benzoate
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-
E
14
Not applicable
Not applicable
-
Fine white to grey powder
Logran B-Power Herbicide Touchdown B-Power Inspire EC
Usually supplied as water dispersible granules and emulsifiable concentrates
10.0
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Low
-
-
-
113
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
-
270
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
-
293
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
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-
-
-
1.58 X 1003
Calculated
-
3.2
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
High
-
-
-
-
-
-
1.37
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
-
-
-
-
-
7.4 X 10-06
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Low volatility
3.5 X 10-07
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Non-volatile
-
-
-
-
-
-
-
1.5
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Non-persistent
-
-
-
-
-
-
-
-
-
-
-
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-
Australian registration dossier states DT₅₀ 0.2-2.2 days aerobic soils, slower in water logged, anaerobic soils
-
-
-
-
-
-
-
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28
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Slow
-
98
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Moderately persistent
-
27
P3 P = Other non-EU, UK or US Governments and Regulators 3 = Unverified data of known source
Fast
Slow, DT50 25-30 days
P3 P = Other non-EU, UK or US Governments and Regulators 3 = Unverified data of known source
Slow, DT50 25-30 days
Soil adsorption and mobility
-
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Moderately mobile
365
Literature values for Koc range 149-581 mL g⁻¹ in four soils
-
-
-
-
-
-
-
0.25
Calculated
Low leachability
5.84 X 10-04
Calculated
-
-
Low
Calculated
-
Moderately mobile
Calculated
-
-
-
-
-
-
-
-
-
Major fraction
0.780
-
-
-
Aerobic
Known groundwater metabolites
None
- Note: Very persistent
CGA 98166
Water
-
-
Ref: 1165
CGA 293730
Plant
-
-
-
CGA 380963
-
-
-
Terrestrial ecotoxicology
> 5000
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Rat
Low
-
-
-
-
-
-
-
-
> 2250
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Colinus virginianus
Low
-
-
-
-
-
-
1250
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Low
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
20
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Moderate
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3.9
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Oncorhynchus mykiss
Moderate
0.011
P3 P = Other non-EU, UK or US Governments and Regulators 3 = Unverified data of known source
Oncorhynchus mykiss survival
Moderate
8.6
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Daphnia magna
Moderate
> 0.009
P3 P = Other non-EU, UK or US Governments and Regulators 3 = Unverified data of known source
Daphnia magna growth
High
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.0025
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Scenedesmus subspicatus
High
-
-
-
-
-
-
-
-
-
HUMAN HEALTH AND PROTECTION
High (class III)
-
-
> 5000
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Rat
Low
2000
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Rat
-
> 5.1
L3 L = Pesticide manuals and hard copy reference books / other sources 3 = Unverified data of known source
Rat
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
List II
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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
; E0 E = Unspecified genotoxicity type (miscellaneous data source) 0 = No data
XNo, known not to cause a problem
Reproduction / development effects
Acetyl cholinesterase inhibitor
Neurotoxicant
XNo, known not to cause a problem
XNo, known not to cause a problem
XNo, known not to cause a problem
Respiratory tract irritant
Skin irritant
Skin sensitiser
✓Yes, known to cause a problem
✓Yes, known to cause a problem
No data found
Eye irritant
Phototoxicant
 
✓Yes, known to cause a problem
No data found
 
Possible liver toxicant
Not oxidising or explosive IMDG Transport Hazard Class 9 Not expected to autoignite; Not highly flammable
Health: H373 Environment: H400, H410
III (Slightly hazardous)
UN3077
Packaging Group III (minor danger)
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butafenacil
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butafenacilo
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butafenacyl
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Record last updated:
19/08/2023
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