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quizalofop-ethyl (Ref: DPX Y6202)
** quizalofop ** EXP 3864 ** FBC 32197 ** INY 6202 ** Xylofop-ethyl ** 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 quizalofop-ethyl

Description: A herbicide for the post-emergence control of annual and perennial grass weeds in various field crops

Example pests controlled: Wild oats; Great brome; Volunteer cereals; Barley grass

Example applications: Field peas; Lupins; Sugarbeet

Efficacy & activity: -

Availability status: Current

Introduction & key dates: 1984

EC Regulation 1107/2009 (repealing 91/414):
Status Not approved
Dossier rapporteur/co-rapporteur Not applicable
Date inclusion expires Expired
EU Candidate for substitution (CfS) Not applicable
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 A chiral molecule. The technical material is an isomeric mixture of R(+)- and S(-)-enantiomers. The R-form is the more biologically active.
Chemical formula C19H17ClN2O4
Canonical SMILES CCOC(=O)C(C)OC1=CC=C(C=C1)OC2=CN=C3C=C(C=CC3=N2)Cl
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) OSUHJPCHFDQAIT-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C19H17ClN2O4/c1-3-24-19(23)12(2)25-14-5-7-15(8-6-14)26-18-11-21-17-10-13(20)4-9-16(17)22-18/h4-12H,3H2,1-2H3
2D structure diagram/image available? Yes

Click to access the Cambridge Crystallographic Data Centre (CCDC) website
Cambridge Crystallographic Data Centre diagrams:
Common Name Relationship Link
Quizalofop-ethyl - Click here for the CCDC structure diagram
Quizalofop-P-ethyl Enantimer Click here for the CCDC structure diagram

General status: Click here for further information on the general chemical status information used on this site
Pesticide type Herbicide
Substance group Aryloxyphenoxypropionate
Minimum active substance purity -
Known relevant impurities -
Substance origin Synthetic
Mode of action Systemic, absorbed through leaves and translocated. An acetyl CoA carboxylase inhibitor (ACCase).
CAS RN 76578-14-8
EC number -
CIPAC number 429
US EPA chemical code 128711
PubChem CID 53518
Molecular mass (g mol-1) 372.8
PIN (Preferred Identification Name) rac-ethyl (2R)-2-{4-[(6-chloroquinoxalin-2-yl)oxy]phenoxy}propanoate
IUPAC name ethyl (RS)-2-[4-(6-chloroquinoxalin-2-yloxy)phenoxy]propionate
CAS name ethyl 2-(4-((6-chloro-2-quinoxalinyl)oxy)phenoxy)propanoate
Other status information Severe Marine Pollutant
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) Not known
Herbicide Resistance Classification (WSSA) Not known
Insecticide Resistance Classification (IRAC) Not applicable
Fungicide Resistance Classification (FRAC) Not applicable
Examples of recorded resistance -
Physical state Colourless crystals
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
  • King Tech
  • Bayer CropScience
  • Nissan Chemical Industries Ltd.
Example products using this active
  • Assure
  • Pilot
  • Targa
UK LERAP status No UK approval for use as a pesticide under EC Regulation 1107/2009
Formulation and application details Available as emulsifiable concentrates and soluble concentrates.


ENVIRONMENTAL FATE

for quizalofop-ethyl

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) 0.31 B5 Low
Solubility - In organic solvents at 20oC (mg l-1) 650000 C4 - Acetone -
680000 C4 - Benzene -
5000 C4 - Hexane -
22000 C4 - Methanol -
Melting point (oC) 91.9 L3 -
Boiling point (oC) - - -
Degradation point (oC) - - -
Flashpoint (oC) - - -
Octanol-water partition coefficient at pH 7, 20oC P 1.91 X 1004 Calculated -
Log P 4.28 B5 High
Bulk density (g ml-1)/Specific gravity 1.35 L3 -
Dissociation constant (pKa) at 25oC - - -
Note:
Vapour pressure at 20oC (mPa) 0.04 B5 Low volatility
Henry's law constant at 25oC (Pa m3 mol-1) 8.20 X 10-02 H4 Non-volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 2.25 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 1.12 X 10-01 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 High
Maximum UV-vis absorption L mol-1 cm-1 - - -
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) 45 B5 Moderately persistent
DT50 (lab at 20oC) 45 - Moderately persistent
DT50 (field) 60 F3 Moderately persistent
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note Other sources: DT50 range 1-90 days
Dissipation rate RL50 on plant matrix Value - - -
Note -
Dissipation rate RL50 on and in plant matrix Value 0.8 R3 -
Note Onion bulb, n=1
Aqueous photolysis DT50 (days) at pH 7 Value 0.01 B5 Fast
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value 2 B5 Non-persistent
Note -
Water-sediment DT50 (days) - - -
Water phase only DT50 (days) 39 K4 Stable

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 - H3 Slightly mobile
Koc 540
Notes and range Other sources: Log Koc 2.76
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -


ECOTOXICOLOGY

for quizalofop-ethyl

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) 867 Q2 Estimated Threshold for concern
CT50 (days) Not available -
Mammals - Acute oral LD50 (mg kg-1) 1460 B5 Rat Moderate
Mammals - Short term dietary NOEL (mg kg-1) 0.9 L3 Rat High
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) > 2000 A5 Colinus virginianus Low
Birds - Short term dietary (LC50/LD50) > 1123 mg kg bw-1 day-1 A5 Colinus virginianus -
Fish - Acute 96 hour LC50 (mg l-1) > 2.8 L3 Lepomis macrochirus Moderate
Fish - Chronic 21 day NOEC (mg l-1) 0.01 P3 Pimephales promelas Moderate
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) > 2.1 B5 Daphnia magna Moderate
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) 0.023 P3 Daphnia magna Moderate
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) > 0.11 F3 Americamysis bahia Moderate
Sediment dwelling organisms - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, static, water (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, sediment (mg kg-1) - - -
Aquatic plants - Acute 7 day EC50, biomass (mg l-1) 0.083 F3 Lemna gibba Moderate
Non-target plants - - -
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) 3.57 F4 Scenedesmus subspicutus Moderate
Algae - Chronic 96 hour NOEC, growth (mg l-1) 1 Q2 Unknown species Moderate
Honeybees (Apis spp.) Contact acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) 10 B5 Moderate
Unknown mode acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
Bumblebees (Bombus spp.) Contact acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
-
Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
-
Mason bees (Osmia spp.) Contact acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) - - -
Other pollinators (1) Acute LD50 (worst case from 24 , 48 and 72 hour values - μg insect-1) - - -
Mode of exposure -
Other pollinators (2) Acute LD50 (worst case from 24 , 48 and 72 hour values - μg insect-1) - - -
Mode of exposure -
Earthworms - Acute 14 day LC50 (mg kg-1) 1000 L2 Moderate
Earthworms - Chronic NOEC, reproduction (mg kg-1) - - -
Other soil macro-organisms Acute LC50 (mg kg-1) - - -
Chronic NOEC (mg kg-1) - - -
Other arthropod (1) LR50 g ha-1 - - -
% Effect Harmful Dose: 1200 g ha-1
AA3 Typhlodromus pyri
-
Other arthropod (2) LR50 g ha-1 - - -
% Effect Moderately harmful Dose: 1200 g ha-1
AA3 Chrysoperla carnea
-
Soil micro-organisms - - -
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

for quizalofop-ethyl

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) 1460 B5 Rat Moderate
Mammals - Dermal LD50 (mg kg-1 body weight) > 5000 L3 Rat -
Mammals - Inhalation LC50 (mg l-1) 5.8 L3 Rat -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) 0.009 L3 -
ARfD - Acute Reference Dose (mg kg-1bw day-1) - - -
AAOEL - Acute Acceptable Operator Exposure Level (mg kg-1 bw day-1) - - -
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1) - - -
Dermal penetration studies (%) - - -
Dangerous Substances Directive 76/464 - - -
Exposure Routes Public -
Occupational Occupational exposure may occur through inhalation and dermal contact
European MRLs Click here for the EU MRL pesticide database
Drinking Water Standards - - -
Drinking Water MAC (μg l-1) - - -

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

-

A3; B0; C0; D0; E0

-

-

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

General human health issues Liver toxicant
Harmful in contact with skin and if swallowed
Key: Genotoxicity
A: Chromosome aberration (EFSA database)
B: DNA damage/repair (EFSA database)
C: Gene mutation (EFSA database)
D: Genome mutation (EFSA database)
E: Unspecified genotoxicity type (miscellaneous data source)
0: No data
1: Positive
2: Mixed/ambiguous results
3: Negative
Key: Other
: 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 IMDG Transport Code is usually 9
CLP classification 2013 Health: H317
Environment: H400, H410
EC Risk Classification Click here to view information omn the EU risk phrases Xn - Harmful: R21/22
EC Safety Classification Click here to view information omn the EU safety phrases S22, S24/25
WHO Classification II - Moderately hazardous
UN Number Usually 3077
Waste disposal & packaging Click here for a description of UN packaging marks Packaging Group III (minor danger)


TRANSLATIONS

for quizalofop-ethyl

Language Name
English quizalofop-ethyl
French quizalofop-ethyl
German Quizalofop-ethyl
Danish quizalofop-ethyl
Italian quizalofop-etile
Spanish quizalofop-etil
Greek -
Slovenian kvizalofop-etil
Polish kwizalofop etylowy
Swedish -
Hungarian quinzalofop-etil
Dutch -

Record last updated: Tuesday 03 March 2020
Contact: aeru@herts.ac.uk