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trifloxysulfuron-sodium (Ref: CGA 362622)
** CGA 362622 ** Translations

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

SUMMARY

Trifloxysulfuron-sodium is a post-emergence herbicide without EU regulatory approval for use. It has a high aqueous solubility, is relatively volatile and, based on its chemical properties, is mobile and may leach to groundwater in some situations. It is moderately persistent in soil systems but is generally non-persistent in aquatic systems. It has a low mammalian toxicity and has a high potential to bioaccumulate. It is a skin and eye irritant. It is moderately toxic to birds, honey bees and earthworms but is less toxic to fish and daphnia. However, it is very toxic to aquatic plants and algae.

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

Description: Post emergence herbicide for control of grasses, sedges and broad-leaved weeds

Example pests controlled: Morning glory; Noogoora burr; Nutgrass; Burr medic; Sesbania pea; Yellow vine; Italian cockleburr

Example applications: Cotton; Sugarcane

Efficacy & activity: -

Availability status: Current

Introduction & key dates: 2003, registration

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 as acid

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 C14H13F3N5NaO6S
Canonical SMILES COC1=CC(=NC(=N1)NC(=O)[N-]S(=O)(=O)C2=C(C=CC=N2)OCC(F)(F)F)OC.[Na+]
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) UFEIWEXHHOXPGP-UHFFFAOYSA-M
International Chemical Identifier (InChI) InChI=1S/C14H14F3N5O6S.Na/c1-26-9-6-10(27-2)20-12(19-9)21-13(23)22-29(24,25)11-8(4-3-5-18-11)28-7-14(15,16)17;/h3-6H,7H2,1-2H3,(H2,19,20,21,22,23);/q;+1/p-1/fC14H13F3N5O6S.Na/h22H;/q-1;m/b21-13-;
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 Aborbed by shoots and roots and translocated. Inhibits plant amino acid synthesis - acetohydroxyacid synthase AHAS
CAS RN 199119-58-9
EC number -
CIPAC number 617
US EPA chemical code 119009
PubChem CID 23676736
Molecular mass (g mol-1) 459.33
PIN (Preferred Identification Name) sodium (4,6-dimethoxypyrimidin-2-yl){[3-(2,2,2-trifluoroethoxy)pyridine-2-sulfonyl]carbamoyl}azanide
IUPAC name sodium N'-(4,6-dimethoxypyrimidin-2-yl)-N-[3-(2,2,2-trifluoroethoxy)-2-pyridylsulfonyl]imidocarbamate
CAS name 2-pyridinesulfonamide, N-[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]-3-(2,2,2-trifluoroethoxy)-, monosodium 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 White 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 -
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 trifloxysulfuron-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) 25700 L3 High
Solubility - In organic solvents at 20oC (mg l-1) 17000 P4 - Acetone -
3800 P4 - Ethyl acetate -
50000 P4 - Methanol -
1.0 P4 - Toluene -
Melting point (oC) 174 L3 -
Boiling point (oC) - - -
Degradation point (oC) - - -
Flashpoint (oC) - - -
Octanol-water partition coefficient at pH 7, 20oC P 3.80 X 10-01 Calculated -
Log P -0.42 P4 Low
Bulk density (g ml-1)/Specific gravity 0.645 P4 -
Dissociation constant (pKa) at 25oC 4.76 P4 -
Note: Weak acid
Vapour pressure at 20oC (mPa) 0.001 P4 Low volatility
Henry's law constant at 25oC (Pa m3 mol-1) 2.6 X 10-05 P4 Non-volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 2.79 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 2.38 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 Medium
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) 63.5 L3 Moderately persistent
DT50 (lab at 20oC) 70 F3 Moderately persistent
DT50 (field) - - -
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note Literature values DT50 45-80 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 18 P4 Slow
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value 20 L3 Non-persistent
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 - L3 Moderately mobile
Koc 306
Notes and range General literature Koc range 29-584 mL/g; Other data source: 5000 mL/g (US3)
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -


ECOTOXICOLOGY

for trifloxysulfuron-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) - L3 Rat -
(ppm diet) 500 -
Birds - Acute LD50 (mg kg-1) 2000 L3 Anas platyrhynchos Moderate
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) > 103 L3 Oncorhynchus mykiss Low
Fish - Chronic 21 day NOEC (mg l-1) 9.5 P3 Oncorhynchus mykiss Moderate
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) > 108 L3 Daphnia magna Low
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) 0.55 P3 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) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, sediment (mg kg-1) - - -
Aquatic plants - Acute 7 day EC50, biomass (mg l-1) 0.00055 P4 Lemna gibba High
Non-target plants - - -
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) 0.0065 L3 Pseudokirchneriella subcapitata High
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) > 25 L3 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) > 748 P4 Eisenia foetida 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 76.9 P4 Typhlodromus pyri -
% Effect Not harmful L2 Typhlodromus pyri -
Other arthropod (2) LR50 g ha-1 - - -
% Effect Not harmful L3 Aphidius rhopalosiphi -
Soil micro-organisms No effect on soil microbes L3 -
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

for trifloxysulfuron-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) > 2000 L3 Rabbit -
Mammals - Inhalation LC50 (mg l-1) 5.03 L3 Rat, 4 hr -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) 0.15 L3 -
ARfD - Acute Reference Dose (mg kg-1bw day-1) 6.0 P4 Rat, SF=100 -
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

A3; B0; C0; D0; E0

-

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

-

General human health issues Chronic exposure may cause protein metabolism disturbances, emphysema, and weight loss
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 Environment: H400, H410
EC Risk Classification Click here to view information omn the EU risk phrases Xi - Irritant: R36/37
EC Safety Classification Click here to view information omn the EU safety phrases -
WHO Classification NL - Not listed
UN Number -
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for trifloxysulfuron-sodium

Language Name
English trifloxysulfuron-sodium
French -
German -
Danish -
Italian -
Spanish trifloxisulfuron sodico
Greek -
Slovenian -
Polish trifloksysulfuron sodowy
Swedish -
Hungarian -
Dutch -

Record last updated: Wednesday 03 July 2019
Contact: aeru@herts.ac.uk