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An in-depth analysis of Fluroxypyr ester biochemistry, translocative phloem movement, and receptor-targeted weed suppression systems.
Fluroxypyr (chemically 4-amino-3,5-dichloro-6-fluoro-2-pyridyloxyacetic acid) operates as a synthetic auxin mimic. Upon foliar absorption, it rapidly translocates through both xylem and phloem tissues, binding to TIR1/AFB auxin co-receptors. This induces deregulated nucleic acid synthesis, ethylene release, and massive cell elongation, leading to vascular collapse within 24 to 48 hours.
Commercial active ingredients utilize Fluroxypyr-meptyl (CAS 81406-37-3), a lipophilic ester prodrug. This chemical structure maximizes cuticle penetration across broadleaf weeds. Inside the plant's symplast, endogenous esterase enzymes rapidly cleave the meptyl ester side chain, releasing pure parent Fluroxypyr acid for systemic activity.
Monocotyledonous crops such as wheat, barley, corn, and forage grasses detoxify Fluroxypyr via rapid conjugation with plant sugars and polar metabolites. This enzymatic pathway grants exceptional crop selectivity, allowing post-emergence application from 2-leaf stages up to flag leaf development without risking crop injury.
Unlike traditional phenoxy herbicides (e.g., 2,4-D or MCPA), Fluroxypyr exhibits zero soil residue persistence issues for subsequent broadleaf rotations when applied at standard agronomic rates. Furthermore, its efficacy is completely unaffected by low ambient temperatures down to 5°C, making it the preferred choice for early-spring weed control programs.
Awiner Biotech produces high-purity Fluroxypyr Technical (TC) and customized finished formulations tailored for international climate conditions.
| Property / Parameter | Fluroxypyr Technical (98% TC) | Fluroxypyr 200g/L EC | Fluroxypyr 333g/L EC | Fluroxypyr + Florasulam SE (Mix) |
|---|---|---|---|---|
| CAS Registry Number | 69184-19-2 (Acid) / 81406-37-3 (Meptyl) | 81406-37-3 (Formulated) | 81406-37-3 (Formulated) | 81406-37-3 + 145701-23-1 |
| Appearance | Off-white to light tan crystalline powder | Clear amber homogeneous liquid | Dark amber emulsifiable liquid | Stable white suspension emulsion |
| Active Content Min. | ≥ 980 g/kg (98.0%) | 200 g/L ± 10 g/L | 333 g/L ± 15 g/L | 100 g/L Fluro + 5 g/L Florasulam |
| Free Acid Content Max. | ≤ 1.0% | ≤ 0.5% | ≤ 0.5% | ≤ 0.3% |
| Water Content / Moisture | ≤ 0.5% | ≤ 0.3% | ≤ 0.3% | Balance Water Carrier |
| Emulsion Stability | N/A | Passes CIPAC MT 36.3 (24h) | Passes CIPAC MT 36.3 (24h) | Passes CIPAC MT 161 (24h) |
| Flash Point | N/A | > 65°C (Closed Cup) | > 68°C (Closed Cup) | Non-flammable (Aqueous) |
Fluroxypyr provides gold-standard control over hard-to-kill broadleaf weeds, including: Galium aparine (Cleavers/Bedstraw), Kochia scoparia, Stellaria media (Chickweed), Polygonum convolvulus (Wild Buckwheat), Rumex species, Solanum nigrum, and ALS/triazine-resistant biotypes.
Designed for multi-spectrum broadacre applications, Awiner Biotech's Fluroxypyr EC formulations exhibit 100% physically stable synergy with Clodinafop-propargyl, Fenoxaprop-p-ethyl, Pinoxaden, 2,4-D Isooctyl Ester, MCPA Isooctyl, and Tribenuron-methyl without antagonizing grass weed control.
Field-proven performance protocols adapted to diverse soil conditions, weather patterns, and agronomic cropping cycles worldwide.
Primary Countries: Ukraine, Russia, Kazakhstan, Uzbekistan.
Agronomic Context: Intense infestation of Galium aparine and Brunnera in winter wheat. Early spring application at 150-200 g a.i./ha (equivalent to 750-1000 mL/ha of Fluroxypyr 200g/L EC) provides complete suppression even during cold snap conditions (5°C to 10°C).
Primary Countries: Iraq, Iran, Syria, Turkey, Libya, Yemen, Pakistan.
Agronomic Context: Irrigated and rainfed cereal production suffering from heat-stressed broadleaf weeds. Fluroxypyr's lipophilic meptyl ester penetrates thick plant cuticles rapidly, reducing rainfastness risk to under 1 hour.
Primary Countries: Brazil, Chile, Bolivia, Mexico, Paraguay.
Agronomic Context: Control of woody shrubs, Convolvulus arvensis, and perennial vines in pasture management and non-crop utility corridors. High-dose Fluroxypyr 333g/L EC delivers deep root kill without destroying valuable pasture grasses.
Awiner Biotech's proprietary synthesis pathway ensures minimal environmental impact, high purity conversion, and zero nitrosamine contamination.
Utilizing high-purity 3,5,6-trichloropyridine-2-ol as the precursor, our automated fluorination reactor achieves sub-fractional halogen substitution under halogen-exchange (Halex) conditions using anhydrous potassium fluoride (KF) in high-boiling dipolar aprotic solvents, minimizing undesirable isomers.
The coupling of 4-amino-3,5-dichloro-6-fluoro-2-pyridinol with 1-methylheptyl chloroacetate is executed in closed-loop batch reactors. Advanced phase-transfer catalysts increase conversion yield to >98.5% while suppressing volatile organic byproducts.
Replacing toxic aromatic solvents (such as Solvesso 150/200) with vegetable-derived methyl ester solvents and biodegradable surfactant blends, yielding low-VOC, high-flashpoint emulsifiable concentrates that comply with stringent European and American environmental standards.
Leveraging Shijiazhuang's chemical industry cluster to provide world-class agrochemicals with unmatched cost efficiency and logistics agility.
Situated in Hebei Province—the core chemical hub of Northern China—Awiner Biotech maintains direct pipeline and contract supply agreements for critical raw materials (pyridine derivatives, fluorine salts, and specialized alkylating agents). This vertical integration insulates enterprise B2B buyers from international market price volatility and feedstock shortages.
Our strategic location in Shijiazhuang, close to China's capital Beijing, provides fast connectivity to Tianjin Port—one of North China's largest container shipping hubs. We guarantee streamlined Customs clearance, Hazardous Goods (DG) packing compliance, and rapid transit times for FCL and LCL shipments globally.
Full support for government registrations, regulatory dossier submission, and rigorous analytical quality control.
We provide full GLP (Good Laboratory Practice) analytical data packages, including 5-batch analysis, toxicological profiles, ecotoxicity studies, and environmental fate data to support customer registrations with local Authorities (e.g., EPA, EU REACH, MAPA, ICAMA).
Every commercial production batch undergoes strict quality testing adhering to FAO (Food and Agriculture Organization) and CIPAC testing methods. Certificates of Analysis (COA) are issued by our ISO/IEC 17025 accredited quality control laboratory prior to dispatch.
From 100mL aluminum bottles to 200L UN-rated steel drums and 1000L IBC totes, we provide complete private labeling, COA, SDS, and multi-language safety labels tailored to the buyer's destination country regulatory guidelines.
A global leader in innovative agrochemical manufacturing, crop protection research, and international trade.
Awiner Biotech was founded in 2006, located in north of China—Shijiazhuang, Hebei Province. The city is close to our capital Beijing, and transportation is convenient.
Awiner Biotech is committed to research, produce and distribute agrochemicals, mainly dealing with pesticides, herbicides, fungicides, plant growth regulators, and public health pesticides.
Our team actively participates in leading international agricultural exhibitions worldwide, including events in Turkey, Iran, Pakistan, Nigeria, Russia, Cambodia, Malaysia, Uzbekistan, and more.
We go directly to our customers' countries to conduct market inspections, analyze and solve complex crop protection problems, understand local product usage patterns, and host clients for technical audits at our manufacturing facilities.
Up to now, we have won trusted long-term customers across the following countries and regions:
Expert answers addressing active ingredient procurement, biological efficacy, resistance management, and international shipping.
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