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flucarbazone-sodium (Ref: BAY MKH 6562)
** MKH 6562 ** Translations

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

SUMMARY

Flucarbazone-sodium is a post-emergency herbicide that is not approved for use in the EU. It is highly soluble in water, semi-volatile but poses a high risk of leaching to groundwater. It is non-persistent in soils but may be very persistent in aquatic systems. Whilst it has a low mammalian toxicity it may bioaccumulate. It is an eye irritant but no other serious human health issues have been identified. It is moderately toxic to birds, most aquatic organims and earthworms but considered to be non-toxic to honeybees.

GENERAL INFORMATION Click here for an explantaion of the general chemical status information
for flucarbazone-sodium

Description: Used for selective post-emergence control for grass weeds and some broad-leaved weeds on cereals

Example pests controlled: Wild oats, foxtail, grasses and soem broad-leaved weeds

Example applications: Spring wheat including durum, winter wheat

Efficacy & activity: -

Availability status: Current

Introduction & key dates: 2000

EC Regulation 1107/2009 (repealing 91/414):
Status Not approved
Dossier rapporteur/co-rapporteur Not applicable
Date inclusion expires Not applicable
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: USA, Canada

Chemical structure: Click here for further information on the general chemical status information used on this site
Isomerism -
Chemical formula C12H10F3N4NaO6S
Canonical SMILES CN1C(=NN(C1=O)C(=NS(=O)(=O)C2=CC=CC=C2OC(F)(F)F)[O-])OC.[Na+]
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) UOUXAYAIONPXDH-UHFFFAOYSA-M
International Chemical Identifier (InChI) InChI=1S/C12H11F3N4O6S.Na/c1-18-10(24-2)16-19(11(18)21)9(20)17-26(22,23)8-6-4-3-5-7(8)25-12(13,14)15;/h3-6H,1-2H3,(H,17,20);/q;+1/p-1
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 -
Known relevant impurities -
Substance origin Synthetic
Mode of action Inhibits plant amino acid synthesis - acetohydroxyacid synthase AHAS., Absorbed through roots and foliage and translocated. Exhibits some residual activity.
CAS RN 181274-17-9
EC number -
CIPAC number 658
US EPA chemical code 114009
PubChem CID 12056760
Molecular mass (g mol-1) 418.28
PIN (Preferred Identification Name) -
IUPAC name sodium 4,5-dihydro-3-methoxy-4-methyl-5-oxo-N-{[2-(trifluoromethoxy)phenyl]sulfonyl}-1H-1,2,4-triazole-1-carboximidate
CAS name 1H-1,2,4-triazole-1-carboxamide, 4,5-dihydro-3-methoxy-4-methyl-5-oxo-N-((2-(trifluoromethoxy)phenyl)sulfonyl)-, sodium salt
Other status information -
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 -
Physical state Colourless crystalline 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 Crop Protection
Example products using this active
  • Everest
UK LERAP status No UK approval for use as a pesticide under EC Regulation 1107/2009
Formulation and application details -


ENVIRONMENTAL FATE

for flucarbazone-sodium

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) 44000 L3 High
Solubility - In organic solvents at 20oC (mg l-1) - - -
Melting point (oC) 200 L3 - Decomposes -
Boiling point (oC) - - -
Degradation point (oC) - - -
Flashpoint (oC) - - -
Octanol-water partition coefficient at pH 7, 20oC P 1.45 X 10-02 Calculated -
Log P -1.84 F4 Low
Bulk density (g ml-1)/Specific gravity 1.59 L3 -
Dissociation constant (pKa) at 25oC 1.9 L3 -
Note: Data for free acid, Strong acid
Vapour pressure at 20oC (mPa) 1.0 X 10-06 L3 Low volatility
Henry's law constant at 25oC (Pa m3 mol-1) 1.0 X 10-11 L3 Non-volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 2.94 Calculated High leachability
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 1.20 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 Low
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) 17 L3 Non-persistent
DT50 (lab at 20oC) - - -
DT50 (field) 12.3 F4 Non-persistent
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note Literature DT50 values range 9-22 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 Stable F4 -
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value Stable F4 -
Note -
Water-sediment DT50 (days) - - -
Water phase only DT50 (days) - - -

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 - DW4 Mobile
Koc 20
Notes and range -
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -


ECOTOXICOLOGY

for flucarbazone-sodium

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 Q3 Based on LogP < 3 Low potential
CT50 (days) - -
Mammals - Acute oral LD50 (mg kg-1) > 5000 L3 Rat Low
Mammals - Short term dietary NOEL (mg kg-1) > 1000 L3 Mice Moderate
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) 2000 L3 Colinus virginianus Moderate
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) 96.7 L3 Oncorhynchus mykiss Moderate
Fish - Chronic 21 day NOEC (mg l-1) 2.75 F3 Oncorhynchus mykiss Moderate
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) 109 L3 Daphnia magna Low
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) - - -
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) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, sediment (mg kg-1) - - -
Aquatic plants - Acute 7 day EC50, biomass (mg l-1) 0.0126 L3 Lemna gibba Moderate
Non-target plants - - -
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) 6.4 L3 Pseudokirchneriella subcapitata Moderate
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
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) - - -
Unknown mode acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1) > 200 F3 Low
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 L3 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 - - -
Other arthropod (2) LR50 g ha-1 - - -
% Effect - - -
Soil micro-organisms - - -
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

for flucarbazone-sodium

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) > 5000 L3 Rat Low
Mammals - Dermal LD50 (mg kg-1 body weight) > 5000 L3 Rat -
Mammals - Inhalation LC50 (mg l-1) > 5.13 L3 Rat -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) - - -
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 List II - -
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 Genotoxic Endocrine disrupter Reproduction / development effects Cholinesterase inhibitor Neurotoxicant

A0; B0; C0; D0; E3

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

-

General human health issues No further information available
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 No information available
CLP classification 2013 -
EC Risk Classification Click here to view information omn the EU risk phrases Xi - Irritant: R36
EC Safety Classification Click here to view information omn the EU safety phrases -
WHO Classification U - Unlikely to present an acute hazard
UN Number -
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for flucarbazone-sodium

Language Name
English flucarbazone-sodium
French -
German -
Danish -
Italian -
Spanish flucarbazona sodio
Greek -
Slovenian -
Polish flukarbazon sodowy
Swedish -
Hungarian -
Dutch -

Record last updated: Thursday 31 May 2018
Contact: aeru@herts.ac.uk