Pyributicarb (Ref: TSH-888)
Last updated: 14/09/2023
(Not known by any other names)
Pyributicarb is a monothiocarbamic ester used as a herbicide which also demonstrates some fungicidal activity. It is used for the control of grasses in rice paddy fields. It is almost insoluble in water and is not persistent in paddy fields with a half-life of 13-18 days. It is highly toxic to aquatic organisms. It does not appear to be highly toxic to mammals but may be 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
A herbicide for the control of grasses in rice paddy fields and in other situations
Annual grasses, including Echinochloa oryzicola, Cyperus difformis and Monochoria vaginalis
Rice; Turf
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Novel, current
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Not approved
Not applicable
No UK approval foe use
EC Regulation 1107/2009 (repealing 91/414)
Not approved
Not applixcable
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
 
 
 
 
 
 
 
 
 
None
C₁₈H₂₂N₂O₂S
CC(C)(C)C1=CC(=CC=C1)OC(=S)N(C)C2=NC(=CC=C2)OC
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VTRWMTJQBQJKQH-UHFFFAOYSA-N
InChI=1S/C18H22N2O2S/c1-18(2,3)13-8-6-9-14(12-13)22-17(23)20(4)15-10-7-11-16(19-15)21-5/h6-12H,1-5H3
Yes
Herbicide, Fungicide
Thiocarbamate herbicide; Carbamate herbicide
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Synthetic
Sterol biosynthesis inhibitor. Systemic, absorbed by the roots, leaves and stem and translocated to active growth sites where it inhibits elongation of the roots and aerial parts.
88678-67-5
618-200-7
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No data found
330.44
O-(3-tert-butylphenyl) (6-methoxypyridin-2-yl)methylcarbamothioate
O-(3-tert-butylphenyl) (6-methoxy-2-pyridyl)methylcarbamothioate
O-(3-(1,1-dimethylethyl)phenyl) N-(6-methoxy-2-pyridinyl)-N-methylcarbamothioate
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-
Not known
Not known
Not applicable
18
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White crystalline powder
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Seezet Flowable Opryzaguard
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0.32
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Low
28000
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Methanol
-
780000
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Acetone
-
33000
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Ethanol
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560000
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Ethyl acetate
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86
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
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-
-
-
-
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-
-
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-
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-
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-
-
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0.269
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
at 40 °C
Low volatility
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General literature: soil half life in paddy fields 13-18 days
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Soil adsorption and mobility
-
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Slightly mobile
1885
General literature
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Cannot be calculated
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None
Terrestrial ecotoxicology
> 5000
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Rat
Low
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> 11.0
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Oncorhynchus mykiss
Moderate
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> 15.0
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Daphnia magna
Moderate
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HUMAN HEALTH AND PROTECTION
High (class III)
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> 5000
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Rat
Low
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> 6.52
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
Rat 4 hr
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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
No data found
No data found
Respiratory tract irritant
Skin irritant
Skin sensitiser
No data found
?Possibly, status not identified
XNo, known not to cause a problem
Eye irritant
Phototoxicant
 
XNo, known not to cause a problem
No data found
 
No information available
IMDG Transport Hazard Class 6.1
Environment: H400, H410
Not listed (Not listed)
UN2757
Packaging Group III (minor danger)
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pyributicarb
pyributicarbe
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Record last updated:
14/09/2023
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