fluroxypyr-meptyl |
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GENERAL INFORMATION
for fluroxypyr-meptyl
Description: A post-emergence herbicide used to control economically important broad-leaved weeds
Example pests controlled: Annual and perennial broad-leaved weeds including kochia, lespedeza and dogfennel; Woody brush
Example applications: Rangeland; Permanent pasture; Non-crop areas; Cereals including wheat, corn
Efficacy & activity: -
Availability status: Current
Introduction & key dates: -
EC Regulation 1107/2009 (repealing 91/414):
Status | Approved |
Dossier rapporteur/co-rapporteur | Sweden/Slovenia |
Date inclusion expires | 31/12/2021 |
EU Candidate for substitution (CfS) | No |
Listed in EU database | Yes |
Approved for use () or known to be used (
) in the following European countries:
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
Isomerism | Fluroxypyr is not itself isomeric but the meptyl ester has a pair of enantiomers. |
Chemical formula | C15H21Cl2FN2O3 |
Canonical SMILES | CCCCCCC(C)OC(=O)COC1=NC(=C(C(=C1Cl)N)Cl)F |
Isomeric SMILES | No data |
International Chemical Identifier key (InChIKey) | OLZQTUCTGLHFTQ-UHFFFAOYSA-N |
International Chemical Identifier (InChI) | InChI=1S/C15H21Cl2FN2O3/c1-3-4-5-6-7-9(2)23-10(21)8-22-15-12(17)13(19)11(16)14(18)20-15/h9H,3-8H2,1-2H3,(H2,19,20) |
2D structure diagram/image available? | Yes |
Pesticide type | Herbicide | |||
Substance group | Pyridine compound | |||
Minimum active substance purity | 950 g/kg | |||
Known relevant impurities | EU dossier - None declared | |||
Substance origin | Synthetic | |||
Mode of action | Selective, foliar uptake causing auxin-type response | |||
CAS RN | 81406-37-3 | |||
EC number | 279-752-9 | |||
CIPAC number | - | |||
US EPA chemical code | 128968 | |||
PubChem CID | 54745 | |||
Molecular mass (g mol-1) | 367.24 | |||
PIN (Preferred Identification Name) | rac-(2R)-octan-2-yl [(4-amino-3,5-dichloro-6-fluoropyridin-2-yl)oxy]acetate | |||
IUPAC name | (RS)-1-methylheptyl 4-amino-3,5-dichloro-6-fluoro-2-pyridyloxyacetate | |||
CAS name | 1-methylheptyl ((4-amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy)acetate | |||
Other status information | - | |||
Relevant Environmental Water Quality Standards | - | |||
Herbicide Resistance Classification (HRAC) | O | |||
Herbicide Resistance Classification (WSSA) | 4 | |||
Insecticide Resistance Classification (IRAC) | Not applicable | |||
Fungicide Resistance Classification (FRAC) | Not applicable | |||
Examples of recorded resistance | Cabbage family; other dicotyldons such as bugloss, comon poppy, corn marigold | |||
Physical state | White crystalline solid | |||
Related substances & organisms | - |
Formulations:
ENVIRONMENTAL FATE
for fluroxypyr-meptyl
Key metabolites:
Metabolite | Formation medium | Estimated maximum occurrence fraction | 1107/2009 relevancy ![]() |
|
4-amino-3,5-dichloro-6-fluoro-2-pyridinol ![]() |
Soil | 0.115 | - | |
4-amino-3,5-dichloro-6-fluoro-2-pirydynil-2-methoxypyridine ![]() |
Soil | 0.178 | - | |
fluroxypyr (Ref: DOW 43304-H) | - | - |
ECOTOXICOLOGY
for fluroxypyr-meptyl
HUMAN HEALTH AND PROTECTION
for fluroxypyr-meptyl
General:
Property ![]() |
Value | Source/Quality Score/Other Information ![]() |
Interpretation ![]() |
|
Threshold of Toxicological Concern (Cramer Class) ![]() |
High (class III) | - | - | |
Mammals - Acute oral LD50 (mg kg-1) | > 2000 | A5 Rat | Low | |
Mammals - Dermal LD50 (mg kg-1 body weight) | > 2000 | A5 Rat | - | |
Mammals - Inhalation LC50 (mg l-1) | > 1.0 | A5 Rat, 4 hr | - | |
Other Mammal toxicity endpoints | - | - | ||
ADI - Acceptable Daily Intake (mg kg-1bw day-1) | 0.8 | A5 Rat, SF=100 | - | |
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) | 0.8 | A5 Rat, SF=100 | - | |
Dermal penetration studies (%) | 4-22 | A5 concentration dependent | - | |
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; B3; C3; D0; E3 | ||||||||
Respiratory tract irritant | Skin irritant | Skin sensitiser | Eye irritant | Phototoxicant | ||||
- |
- |
|
||||||
General human health issues | Possible kidney toxicant | |||||||
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![]() ![]() ![]() - : No data found |
Handling issues:
TRANSLATIONS
for fluroxypyr-meptyl
Language | Name |
English | fluroxypyr-meptyl |
French | fluoroxypyr-meptyl |
German | - |
Danish | - |
Italian | - |
Spanish | fluroxipir meptil |
Greek | - |
Slovenian | - |
Polish | fluroksypyr meptylu |
Swedish | fluroxipyr-1-metylheptylester |
Hungarian | - |
Dutch | - |
Record last updated: Tuesday 05 November 2019
Contact: aeru@herts.ac.uk