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GET ADDITIONAL DATA HERE!

ethoxysulfuron (Ref: AE F095404)
** HOE 095404 ** Translations

Environmental Fate - Ecotoxicology - Human Health - A to Z Index - Home

GENERAL INFORMATION Click here for an explantaion of the general chemical status information
for ethoxysulfuron

Description: A herbicide used for broad-leaved weed and sedge control in a range of crops including cereals and rice

Example pests controlled: Broad-leaved weeds, Sedge

Example applications: Cereals; Rice

Efficacy & activity: -

Availability status: Current

Introduction & key dates: circa 1995

EC Regulation 1107/2009 (repealing 91/414):
Status Not approved
Dossier rapporteur/co-rapporteur Italy
Date inclusion expires Expired
EU Candidate for substitution (CfS) -
Listed in EU database Yes

Approved for use () or known to be used () in the following European countries: Click to access a note on the approvals information on this site

AT

BE

BG

CY

CZ

DE

DK

EE

EL

ES

FI

FR

HR

HU

IE

IT

LT

LU

LV

MT

NL

PL

PT

RO

SE

SI

SK

UK

Also used in: Australia

Chemical structure: Click here for further information on the general chemical status information used on this site
Isomerism -
Chemical formula C15H18N4O7S
Canonical SMILES CCOC1=CC=CC=C1OS(=O)(=O)NC(=O)NC2=NC(=CC(=N2)OC)OC
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) UWVKRNOCDUPIDM-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C15H18N4O7S/c1-4-25-10-7-5-6-8-11(10)26-27(21,22)19-15(20)18-14-16-12(23-2)9-13(17-14)24-3/h5-9H,4H2,1-3H3,(H2,16,17,18,19,20)/f/h18-19H
2D structure diagram/image available? Yes

General status: Click here for further information on the general chemical status information used on this site
Pesticide type Herbicide
Substance group Sulfonylurea
Minimum active substance purity 950 g/kg
Known relevant impurities EU dossier - None declared
Substance origin Synthetic
Mode of action Selective, inhibits plant cell growth. Inhibits plant amino acid synthesis - acetohydroxyacid synthase AHAS
CAS RN 126801-58-9
EC number -
CIPAC number 591
US EPA chemical code -
PubChem CID 3623881
Molecular mass (g mol-1) 398.39
PIN (Preferred Identification Name) 2-ethoxyphenyl [(4,6-dimethoxypyrimidin-2-yl)carbamoyl]sulfamate
IUPAC name 1-(4,6-dimethoxypyrimidin-2-yl)-3-(2-ethoxyphenoxysulfonyl)urea
CAS name 2-ethoxyphenyl [[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]sulfamate
Other status information Chemical subject to PIC regulations
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) B
Herbicide Resistance Classification (WSSA) 2
Insecticide Resistance Classification (IRAC) Not applicable
Fungicide Resistance Classification (FRAC) Not applicable
Examples of recorded resistance Cyperus difformis
Lindernia dubia
Scirpus mucronatus
Physical state White-beige powder
Related substances & organisms -

Formulations:
Property Click here for information on the general product and branding information used on this site Value
Example manufacturers & suppliers of products using this active now or historically
  • Bayer CropScience
Example products using this active -
UK LERAP status No UK approval for use as a pesticide under EC Regulation 1107/2009
Formulation and application details -


ENVIRONMENTAL FATE

for ethoxysulfuron

Property Click here for information on the parameters used to describe environmental fate on this site Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with fate data Interpretation Click here for information on the way in which we interpret environmental fate data
Solubility - In water at 20oC (mg l-1) 5000 A5 High
Solubility - In organic solvents at 20oC (mg l-1) 6 A5 - n-Hexane -
2500 A5 - Toluene -
36000 A5 - Acetone -
7700 A5 - Methanol -
Melting point (oC) 150 A5 -
Boiling point (oC) Decomposes before boiling A5 -
Degradation point (oC) - - -
Flashpoint (oC) Not expected to self ignite; Not highly flammable A5 -
Octanol-water partition coefficient at pH 7, 20oC P 1.02 X 1001 Calculated -
Log P 1.01 A5 Low
Bulk density (g ml-1)/Specific gravity 1.44 A5 -
Dissociation constant (pKa) at 25oC 5.28 A5 -
Note: Weak acid
Vapour pressure at 20oC (mPa) 0.066 A5 Low volatility
Henry's law constant at 25oC (Pa m3 mol-1) 1.94 X 10-03 A5 Non-volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 2.02 Calculated Transition state
SCI-GROW groundwater index (μg l-1) for a 1 kg ha-1 or 1 l ha-1 application rate Click here for a note on the limitations of the SCI-GROW index Value 4.64 X 10-02 Calculated -
Note -
Potential for particle bound transport index Click here for a note on the limitations of the potential for particle bound transport index - Calculated Low
Maximum UV-vis absorption L mol-1 cm-1 194nm = 74000 A5 -
Surface tension (mN m-1) - - -

Degradation:
Property Click here for information on the parameters used to describe substance degradation Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with degradation data Interpretation Click here for information on the way in which we interpret substance degradation data
General biodegradability -
Soil degradation (days) (aerobic) DT50 (typical) 18 A5 Non-persistent
DT50 (lab at 20oC) 12 A5 Non-persistent
DT50 (field) 17.5 A5 Non-persistent
DT90 (lab at 20oC) 114 A5 -
DT90 (field) 57.5 A5 -
DT50 modelling endpoint - - -
Note EU dossier DT50 range 6-18 days (soil), 51 days (flooded paddy fields), DT90 range 59 - 169 days, Field data DT50 range 14 21 days, DT90 range 46 69 days
Dissipation rate RL50 on plant matrix Value - - -
Note -
Dissipation rate RL50 on and in plant matrix Value - - -
Note -
Aqueous photolysis DT50 (days) at pH 7 Value 30 A5 Stable
Note Stable in distilled, sterile water but photodegradation rapid in natural waters
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value 259 A5 Persistent
Note Stable in neutral and slightly alkaline conditions but hydrolyses in slightly acidic conditions
Water-sediment DT50 (days) 30 A5 Moderately fast
Water phase only DT50 (days) 17 A5 Slow

Soil adsorption and mobility:
Property Click here for information on the parameters used to describe substance adsorption and mobility Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with adsorption and mobility data Interpretation Click here for information on the way in which we interpret substance adsorption and mobility
Linear Kd - A4 Moderately mobile
Koc 134
Notes and range -
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity No

Key metabolites:
Metabolite Formation medium Estimated maximum occurrence fraction 1107/2009 relevancy Click here for further information on 1107/2009 relevancy
1-(2-ethoxyphenoxysulfonyl)-3-(6-hydroxy-4-methoxypyrimidin-2-yl)-urea (Ref: AE-F126663) This metabolite may cause environmental pollution, click here for further information Soil   0.428   Major fraction, Relevancy unknown
1-(2-ethoxyphenoxysulfonyl)-3-guanylurea or 3-amidino-1(2-ethoxyphenoxysulfonyl)-urea) (Ref: AE-F136086) This metabolite may cause environmental pollution, click here for further information Soil   0.190   Major fraction, Relevancy unknown
2-amino-4,6-dimethoxypyrimidine (Ref: AE-F092944) This metabolite may cause environmental pollution, click here for further information Soil   0.180   Major fraction, Relevancy unknown
1-(N-hydroxymethylcarbonyl-N-methoxycarbonylguanyl)-3-(2-ethoxyphenyl-sulfonyl)urea This metabolite may cause environmental pollution, click here for further information Soil   0.312   Major fraction, Relevancy unknown


ECOTOXICOLOGY

for ethoxysulfuron

Property Click here for information on the parameters used to describe substance ecotoxicology Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with ecotoxicology data Interpretation Click here for information on the way in which we interpret substance ecotoxicology
Bio-concentration factor BCF (l kg-1) Low risk A5 Based on LogP < 3 Low potential
CT50 (days) - -
Mammals - Acute oral LD50 (mg kg-1) 3270 A5 Rat Low
Mammals - Short term dietary NOEL (mg kg-1) 5.6 A4 Dog High
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) > 2000 A5 Colinus virginianus Low
Birds - Short term dietary (LC50/LD50) > 5000 mg kg feed-1 A5 Colinus virginianus -
Fish - Acute 96 hour LC50 (mg l-1) > 80 A5 Cyprinus carpio Moderate
Fish - Chronic 21 day NOEC (mg l-1) > 22.8 A5 Oncorhynchus mykiss Low
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) 307 A5 Daphnia magna Low
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) 1 A5 Daphnia magna Moderate
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, static, water (mg l-1) 3.2 A4 Chironomus riparius Moderate
Sediment dwelling organisms - Chronic 28 day NOEC, sediment (mg kg-1) - - -
Aquatic plants - Acute 7 day EC50, biomass (mg l-1) 0.00024 A5 Lemna minor High
Non-target plants - - -
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) 0.19 A5 Raphidocelis subcapitata Moderate
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees Contact acute 48 hour LD50 (μg bee-1) > 200 A5 Low
Oral acute 48 hour LD50 (μg bee-1) > 1000 A5 Low
Unknown mode acute 48 hour LD50 (μg bee-1) - - -
Earthworms - Acute 14 day LC50 (mg kg-1) > 1000 A5 Low
Earthworms - Chronic 14 day NOEC, reproduction (mg kg-1) - - -
Other soil macro-organisms - e.g. Collembola LR50 / EC50 / NOEC / % Effect - - -
Other arthropod (1) LR50 g ha-1 - - -
% Effect -79.8 Beneficial capacity
Dose: 0.06 kg ha-1
A5 Aphidius rhopalosiphi
-
Other arthropod (2) LR50 g ha-1 - - -
% Effect -54.3 Beneficial capacity
Dose: 0.06 kg as/ha
A5 Typhlodromus pyri
-
Soil micro-organisms Nitrogen mineralisation: Tolerable effects
Carbon mineralisation: Tolerable effects
A3
Dose: Not stated
-
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

for ethoxysulfuron

General:
Property Click here for information on the parameters used to describe human health and protection issues Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with human health and protection data Interpretation Click here for information on the way in which we interpret human health and protection data
Threshold of Toxicological Concern (Cramer Class) Click here for a note on the limitations of the Cramer class High (class III) - -
Mammals - Acute oral LD50 (mg kg-1) 3270 A5 Rat Low
Mammals - Dermal LD50 (mg kg-1 body weight) > 4000 A5 Rat -
Mammals - Inhalation LC50 (mg l-1) 3.55 A5 Rat -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) 0.04 A5 -
ARfD - Acute Reference Dose (mg kg-1bw day-1) None allocated A5 -
AAOEL - Acute Acceptable Operator Exposure Level (mg kg-1 bw day-1) - - -
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1) 0.06 A4 Rat -
Dermal penetration studies (%) 10 A5 -
Dangerous Substances Directive 76/464 - - -
Exposure Limits - - -
Exposure Routes Public -
Occupational -
European MRLs Click here for the EU MRL pesticide database
Drinking Water Standards - - -
Drinking Water MAC (μg l-1) - - -

Health issues:
Carcinogen Mutagen Endocrine disrupter Reproduction / development effects Cholinesterase inhibitor Neurotoxicant

-

-

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

-

-

General human health issues No further information available

: Yes, known to cause a problem
: No, known not to cause a problem
: Possibly, status not identified
- : No data found

Handling issues:
Property Click here for information on the parameters used to describe substance handling issues Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with data on handling issues Interpretation Click here for information on the way in which we interpret data on handling issues
General Click here for a description of the International Maritime Dangerous Goods (IMDG) codes Not explosive
CLP classification 2013 Environment: H400, H410
EC Risk Classification Click here to view information omn the EU risk phrases N - Dangerous for the environment: R50, R53
EC Safety Classification Click here to view information omn the EU safety phrases S60, S61
WHO Classification NL - Not listed
US EPA Classification (formulation) No consensus across products or no products available - -
UN Number Usually 3077
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for ethoxysulfuron

Language Name
English ethoxysulfuron
French ethoxysulfuron
German Ethoxysulfuron
Danish ethoxysulfuron
Italian etoxisulfuron
Spanish etoxisulfuron
Greek -
Slovenian etoksisulfuron
Polish etoksysulfuron
Swedish -
Hungarian -
Dutch ethoxysulfuron

Record last updated: Wednesday 23 May 2018
Contact: aeru@herts.ac.uk