69377-81-7 Usage
Description
Fluroxypyr is a synthetic auxin, an aminopyridine derivative characterized by the presence of chloro groups at positions 3 and 5, a fluoro group at position 6, and a carboxymethoxy group at position 2. It functions as a systemic and selective herbicide, playing a crucial role in agricultural practices.
Uses
Used in Agriculture:
Fluroxypyr is used as a herbicidal agent for the control of broad-leaved weeds in various settings. Its application reasons and industries are as follows:
1. Small Grain Cereals:
Fluroxypyr is used as a weed control agent in small grain cereals to ensure healthy crop growth and prevent yield loss due to weed competition.
2. Maize:
In maize cultivation, Fluroxypyr is employed to manage broad-leaved weeds, thus maintaining the quality and productivity of the maize crop.
3. Pastures:
Fluroxypyr is utilized in pastures to control unwanted broad-leaved weeds, promoting the growth of desired grasses and forage for livestock.
4. Range Land:
This herbicide is also used in range land management to control broad-leaved weeds, allowing for better forage production and healthier grazing conditions for animals.
5. Turf:
Fluroxypyr is applied in turf management to eliminate broad-leaved weeds, ensuring a clean and well-maintained appearance for lawns, sports fields, and other turf areas.
As a synthetic auxin, Fluroxypyr mimics the action of natural plant hormones, causing uncontrolled growth and eventually leading to the death of the targeted weeds. Its selective nature allows it to be effective against broad-leaved weeds without causing significant harm to the desired crop or grass species.
Trade name
methyl ester: AGROSTAR; BOFIX FFC?;
CABADEX?; CASCADE?; DOWCO? 433 MHE;
FOREFRONT?; GALAXY GL184?; PARADIGM?;
PASTUREGARD?; STARANE?; TOMAHAWK?;
VISTA?; WIDEMATCH?, (fluroxypyr + clopyralid);
XRM-5084?
Potential Exposure
Those who manufacture, distribute or
use this pyridinecarboxylic acid/pyridine herbicide.
Environmental Fate
The DT50 in soil is relatively short,
ranging from 5 to 9 days in experiments conducted in
the laboratory. This rapid degradation is due to microbes.Because of its rapid soil degradation, little fluroxypyr is
available for other dissipation processes, e.g., leaching.
Metabolism
Fluroxypyr is stable under acidic conditions
and moderately stable in alkaline conditions; e.g., the
DT50 in water at pH 9 is 185 days. Degradation occurs at
temperatures above its melting point. Fluroxypyr is stable
in light.
Plant. The metabolism of fluroxypyr has not been fully
described. Conjugates of fluroxypyr have been observed in
tolerant plants.
Soil. Fluroxypyr is rapidly metabolized by soil
microbes via the removal of the carboxyl group or
acetic acid group, yielding 4-amino-3,5-dichloro-6-fluoro-
2-methoxypyridine, and 4-amino-3,5-dichloro-6-fluoro-2-
pyridinol, respectively.
Shipping
UN3077 Environmentally hazardous substances,
solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous haz ardous material, Technical Name Required.
Toxicity evaluation
Mammalian Toxicity. Fluroxypyr appears to be rapidly
excreted, unmodified, in the urine of animals. The acute
oral LD50 for rat is 2405 mg/kg.
Weed Resistance/Modified Crop Tolerance. Fuerst et al.
(48) reported fluroxypyr resistance in yellow starthistle
(Centaurea solstitialis). No crops with modified tolerance
toward fluroxypyr are currently in production.
Incompatibilities
May not be compatible with nitrates.
Moisture may cause hydrolysis or other forms of decompo sition; forming a strong acid. Temperatures above 250℃ can cause decomposition. Methyl ester: Esters react with
acids to liberate heat along with alcohols and acids. Strong
oxidizing acids may cause a vigorous reaction that is suffi ciently exothermic to ignite the reaction products. Heat is
also generated by the interaction of esters with caustic solu tions. Flammable hydrogen is generated by mixing esters
with alkali metals and hydrides.
Waste Disposal
Containers must be disposed
of properly by following package label directions or by
contacting your local or federal environmental control
agency, or by contacting your regional EPA office.
Dissolve or mix the material with a combustible solvent
and burn in a chemical incinerator equipped with an after burner and scrubber. In accordance with 40CFR165, follow
recommendations for the disposal of pesticides and pesti cide containers.
Check Digit Verification of cas no
The CAS Registry Mumber 69377-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,3,7 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 69377-81:
(7*6)+(6*9)+(5*3)+(4*7)+(3*7)+(2*8)+(1*1)=177
177 % 10 = 7
So 69377-81-7 is a valid CAS Registry Number.
InChI:InChI=1/C7H5Cl2FN2O3/c8-3-5(11)4(9)7(12-6(3)10)15-1-2(13)14/h1H2,(H2,11,12)(H,13,14)
69377-81-7Relevant articles and documents
Method for preparing fluroxypyr
-
, (2017/02/17)
The invention discloses a method for preparing fluroxypyr, and belongs to the technical field of fine chemical engineering. The method comprises the steps of carrying out fluorination, carrying out amination, carrying out hydroxylation, carrying out stock solution extraction, carrying out condensation, carrying out hydrolysis and carrying out byproduct conversion. Byproducts and unreacted raw materials in a reaction process are used again through the steps of carrying out stock solution extraction and carrying out byproduct conversion, so that the utilization ratio of the raw materials is increased, the production cost and environmental treatment cost are reduced, and thus the method is applicable to large-scale production.
Soluble polymer based matrix for chemically active water insoluble components
-
, (2008/06/13)
This invention relates to a water soluble matrix composition comprising an anionic surfactant, a C6 to C18 alkyl pyrrolidone, urea and a water insoluble copolymer of vinyl pyrrolidone with not more than 50 wt. % of a comonomer selected from the group of an α-olefin, vinyl acetate, an acrylic or methacrylic acid ester and methacrylamide as a free flowing particulate solid which matrix is suitably mixed with a water insoluble, chemically active component, such as an agrochemical, to provide a clear sprayable film forming emulsion, such as a non-leachable film on a plant or other substrate surface. The invention also relates to the method of preparing the matrix and to the incorporation of an agrochemical concentrate and plant spray composition.
Stabilized agchemical concentrate and use thereof
-
, (2008/06/13)
The present invention relates to the stabilization of an agricultural chemical concentrate in aqueous solution and the stabilized concentrate which comprises: (a) between about 0.1 and about 20 wt. % of a stabilizer composition comprising: (1) between about 10 and about 90 wt. % of a water-insoluble, non-crosslinked, film forming polymer, and (2) a polymer solubilizing amount of an aromatic petroleum distillate or an oxygen-containing solvent of an N-alkyl pyrrolidone, a C3 to C8 alkanol, a dibasic acid lower alkyl ester, an ether having a boiling point above 150° C. or mixtures thereof and (b) between about 80 and about 99.9 wt. % concentrate containing a water-insoluble active agricultural chemical, a solvent for said agricultural chemical and a surfactant for said concentrate. The invention also relates to the use of said stabilized concentrate.