Bentazone-sodium
Last updated: 22/01/2023
(Not known by any other names)
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 post-emergence contact diazinone herbicide used to control annual weeds in a variety of crops
Black bindweed; Nightshade; Fat hen; Hedge mustard; Shepherd's purse; Wild radish; Wild turnip; Bellvine; Starburr; Anoda weed
Corn; Rice; Alfalfa; Sorghum; Linseed; Peanuts; Beans; Peas; Clover; Chives; Garlic; Ornamentals e.g. begonia; Soybeans; Turf
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Current
1972, first introduced
EC Regulation 1107/2009 (repealing 91/414)
Approved
Netherlands/Germany
31/05/2025
No
Yes - as acid
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
C₁₀H₁₂N₂NaO₃S
CC(C)N1C(=O)C2=CC=CC=C2[N-]S1(=O)=O.[Na+]
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NCLRGQCNIDLTDW-UHFFFAOYSA-M
InChI=1S/C10H12N2O3S.Na/c1-7(2)12-10(13)8-5-3-4-6-9(8)11-16(12,14)15;/h3-7H,1-2H3,(H,11,13);/q;+1/p-1
Yes
Herbicide
Benzothiazinone herbicide
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Synthetic
Selective action, absorbed by foliage with very little translocation. Inhibits photosynthesis (photosystem II).
50723-80-3
256-735-4
366
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13124860
613-012-00-1
263.27
sodium 2,2,4-trioxo-3-(propan-2-yl)-3,4-dihydro-2λ6,1,3-benzothiadiazin-1-ide
sodium 3,4-dihydro-3-isopropyl-4-oxo-2,1,3-benzothiadiazin-1-ide 2,2-dioxide
3-(1-methylethyl)-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide sodium salt
Potential groundwater contaminant
UK Environment Agency statutory standard for the protection of surface water quality and aquatic life: annual mean classification of inland waters, coastal waters & relevant territorial waters: 500 µg l⁻¹
C3
6
Not applicable
Not applicable
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Usually formulated as a soluble concentrate or granules, mixed with water and applied as a spray
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Insoluble
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Observed in metabolism and farm animal feeding studies
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Soil adsorption and mobility
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Cannot be calculated
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Major fraction
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Minor fraction
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Minor fraction
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Known groundwater metabolites
None
Terrestrial ecotoxicology
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HUMAN HEALTH AND PROTECTION
High (class III)
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List II
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Minimal risk of dietary exposure No unacceptable risks to bystanders identified
Risk of exposure acceptable under label recommendations for use for personal protection clothing and equipment
EU MRL pesticide database 
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Almost entirely excreted in the urine.
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Carcinogen
Endocrine disruptor
XNo, known not to cause a problem
A3 A = Chromosome aberration (EFSA database) 3 = Negative
; B3 B = DNA damage/repair (EFSA database) 3 = Negative
; C3 C = Gene mutation (EFSA database) 3 = Negative
; 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
XNo, known not to cause a problem
?Possibly, status not identified
✓Yes, known to cause a problem
Eye irritant
Phototoxicant
 
✓Yes, known to cause a problem
XNo, known not to cause a problem
 
Possible blood, liver, kidney toxicant
Not oxidising or explosive Not expected to autoignite; Not highly flammable
Health: H302, H317, H319 Environment: H412
II (Moderately hazardous)
Usually 2588
Packaging Group III (minor danger)
bentazone-sodium
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Record last updated:
22/01/2023
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