Diuron [3-(3,4-dichlorophenyl)-1,1-dimethylurea] represents a cornerstone substituted urea herbicide engineered for total and selective weed control across global agricultural ecosystems and non-crop vegetation control management.
Diuron operates primarily as a potent photosystem II (PSII) electron transport inhibitor. Upon root absorption and foliar translocation, the active molecule binds specifically to the Q_B-binding niche on the D1 protein of the photosynthetic apparatus in chloroplasts. This binding halts photosynthetic electron transport, leading to an inability to convert light energy into ATP and NADPH. Consequently, lipid peroxidation is triggered, cellular membranes collapse, and targeted broadleaf and grassy weeds undergo chlorosis, necrosis, and rapid desiccation.
Awiner Biotech synthesizes and formulates high-efficiency Diuron across multiple international standard specifications: Diuron 97% TC (Technical Material), Diuron 80% WDG (Water Dispersible Granules), Diuron 80% WP (Wettable Powder), and Diuron 500g/L SC (Suspension Concentrate). Advanced co-formulations with Hexazinone, Glyphosate, and Atrazine are optimized to prevent herbicide resistance and provide broad-spectrum extended residual soil control.
Understanding the cost structures, raw material availability, and synthesis logistics that position Chinese active ingredient manufacturers as premier global suppliers.
The manufacturing viability of Diuron hinges on continuous access to key chemical precursors: 3,4-Dichloroaniline (3,4-DCA) and Dimethylamine. China's mature petrochemical industrial parks, particularly across Northern China's chemical corridors, guarantee an uninterrupted stream of high-purity intermediates. This vertical integration buffers international buyers against global spot-market volatility and supply chain disruptions.
Modern synthesis facilities employ automated continuous reaction technology to strictly limit 3,4-dichloroaniline impurities below 0.1% (1000 ppm), satisfying strict EU and FAO specifications. State-of-the-art gas chromatography (GC) and high-performance liquid chromatography (HPLC) units evaluate every batch, preventing phytotoxicity and guaranteeing precise active content stability across variable storage temperatures.
Situated in Shijiazhuang, Hebei Province, Awiner Biotech leverages immediate access to major northern international shipping hubs including Tianjin Port and Qingdao Port. This geographic advantage streamlines hazardous cargo containerization (Class 9 UN3077/UN3082 compliance), reducing inland freight leads and expediting FOB/CIF shipments across South America, Africa, and Eurasia.
Standardized specifications engineered to fulfill international FAO guidelines and local regulatory registration criteria.
| Specification Parameter | Diuron 97% TC | Diuron 80% WDG | Diuron 80% WP | Diuron 500 g/L SC |
|---|---|---|---|---|
| Active Ingredient Content | ≥ 970 g/kg | ≥ 800 g/kg | ≥ 800 g/kg | ≥ 500 g/L |
| Appearance | Off-white / Light Grey Powder | Free-flowing Granules | Fine Off-white Powder | Homogeneous Flowable Liquid |
| Suspensibility / Dispersibility | N/A | ≥ 85% (WDG) | ≥ 80% (WP) | ≥ 90% (SC) |
| Free 3,4-Dichloroaniline | ≤ 0.1% (1000 mg/kg) | ≤ 0.1% | ≤ 0.1% | ≤ 0.1% |
| Persistent Foam (after 1 min) | N/A | < 20 mL | < 25 mL | < 15 mL |
| pH Range | N/A | 5.0 – 8.0 | 6.0 – 9.0 | 5.5 – 8.5 |
| Packaging Options | 25kg Woven Bags / Drums | 1kg Aluminium Bags / 25kg Drums | 1kg Bag / 25kg Bag | 1L, 5L, 20L, 200L HDPE Drums |
When procuring Diuron from China, multinational distributors must evaluate parameters beyond bulk price per metric ton. key considerations include dust control index in WP formulations, dissolution kinetics in hard-water agricultural setups, and long-term tropical storage stability tests (54°C for 14 days). Selecting optimized WDG and SC variants minimizes nozzle clogging in mechanical sprayers, reducing post-purchase field complaints and brand liability in target destination markets.
Diuron's residual soil activity and selective systemic performance make it an essential tool across commercial plantations, industrial non-crop maintenance, and orchard crop weed control.
In tropical sugar production regions (Brazil, Colombia, Thailand, India), Diuron acts as a foundational pre-emergence and early post-emergence weed control foundation against tough broadleaf weeds (e.g., Ipomoea spp., Amaranthus spp.) and stubborn annual grasses. Standard dosage ranges between 1.5 kg/ha to 3.0 kg/ha of Diuron 80% WDG, often tank-mixed with Hexazinone or Atrazine to broaden the spectrum and extend control throughout the critical canopy closure phase.
Applied as a directed base spray under mature crop canopies, Diuron forms a resilient soil chemical barrier preventing weed seedling germination. The low solubility of Diuron ensures it remains concentrated in the top 2-5 cm of soil, avoiding uptake by deeper fruit tree roots. Dosing protocols typically employ 1.6 to 2.4 kg a.i./ha paired with glyphosate for knock-down control of existing weeds during orchard maintenance cycles.
For municipal infrastructure, industrial sites, railway ballast, and utility rights-of-way, heavy-duty broad-spectrum total weed eradication is critical. Diuron 80% WP combined with bromacil, imazapyr, or glyphosate delivers extended non-selective bare-ground weed prevention lasting up to 6–12 months, preventing root growth from compromising paved surfaces, trackbeds, and structural foundations.
Global regulatory agencies are imposing tighter restrictions on operator exposure. Dust-heavy Wettable Powder (WP) formulations are rapidly being replaced by eco-friendly Water Dispersible Granules (WDG) and aqueous Suspension Concentrates (SC). WDG formulations offer superior bulk density, eliminate inhalation safety risks during field mixing, dissolve within 30 seconds, and significantly reduce residual container rinse hazardous waste.
Continuous overuse of single-site herbicides has led to resistance in weeds like Conyza canadensis and Echinochloa crus-galli. Diuron's PSII mode of action provides a critical rotational mechanism alongside ALS inhibitors (e.g., Metsulfuron-methyl) and Synthetic Auxins (e.g., Fluroxypyr-meptyl). Multi-mode combination formulations prevent resistant weed selection pressure and maintain long-term crop protection efficacy.
Securing pesticide registration requires comprehensive toxicology, environmental fate, and chemical validation dossiers customized to local regulatory frameworks.
Awiner Biotech provides clients with certified Good Laboratory Practice (GLP) test reports covering acute oral, dermal, and inhalation toxicity, primary skin/eye irritation, environmental aquatic organism toxicity (daphnia, algae, fish), and soil degradation studies necessary for registration with agricultural ministries worldwide.
We facilitate expedited export authorization by providing full documentation endorsed by the Institute for the Control of Agrochemicals, Ministry of Agriculture (ICAMA). Our regulatory team assists with Certificates of Analysis (CoA), SDS (Safety Data Sheets under GHS standards), Certificates of Free Sale (CFS), and Embassy Legalization.
To support market penetration in distinct geographic regions, we provide complete ODM/OEM artwork customization. Packages are tailored to comply with local labeling regulations, incorporating multi-lingual safety warnings, regional anti-counterfeiting QR codes, and UV-resistant barrier packaging.
Awiner Biotech was founded in 2006, located in the north of China - Shijiazhuang, Hebei Province. The city is close to our capital Beijing, with convenient transportation access. Awiner Biotech is committed to research, production, and distribution of high-quality agrochemicals, mainly dealing with pesticides, herbicides, fungicides, plant growth regulators, and public health pesticides.
Our commitment to rigorous quality control, modern synthesis methodologies, and customer-centric logistics allows us to support agricultural distributors, formulators, and enterprise buyers in maintaining maximum crop yields and pest control safety globally.
Our Global Market Footprint & International Presence
Up to now, we have won trusted long-term customers across 30+ international markets:
Our countries participating in regular agrochemical exhibitions include Turkey, Iran, Pakistan, Nigeria, Russia, Cambodia, Malaysia, Uzbekistan, and more.
We regularly travel to our customer countries to conduct market inspections, analyze regional weed resistance and pest problems, optimize application techniques, and host customer delegations at our Chinese manufacturing facilities.
Addressing key technical queries from enterprise purchasing managers, agronomists, and international distributors.
Selection depends primarily on farm application equipment, user safety priorities, and regional climate. Diuron 80% WDG is dust-free, flowable, mixes rapidly without sedimentation, and reduces handler exposure—making it ideal for mechanized commercial farming. 80% WP offers a cost-effective alternative for traditional hand-mixed operations. 500g/L SC provides a liquid formulation that mixes seamlessly into complex liquid fertilizer tanks and minimizes nozzle wear.
Diuron persistence in soil is influenced by organic matter content, soil pH, moisture, and microbial activity. In soils with high clay or organic carbon content, Diuron binds strongly, preventing leaching into groundwater. Typical soil half-life ranges from 90 to 180 days. High soil temperatures and adequate moisture accelerate microbial breakdown via demethylation and hydrolysis.
Yes, Diuron demonstrates broad physical and biological compatibility. It is routinely tank-mixed with systemic non-selective herbicides like Glyphosate to provide dual action: immediate knock-down of established weeds plus months of residual soil activity. In sugarcane crops, it is frequently combined with Hexazinone or Atrazine to combat diverse broadleaf and grass weed complexes without inducing crop phytotoxicity when applied according to recommended label timings.
Diuron active and formulated mixtures are classified under UN3077 or UN3082 (Environmentally Hazardous Substances, Solid/Liquid, Class 9, Packing Group III). Awiner Biotech supplies UN-certified heavy-duty multi-ply woven polypropylene bags with inner polyethylene liners, UN-approved drums, and specialized stretch-wrapped palletizing to ensure structural integrity across transoceanic sea transit.
Awiner Biotech guarantees Diuron Technical Grade active ingredient purity of ≥970 g/kg (97.0%). Toxicologically significant impurities such as 3,4-dichloroaniline (3,4-DCA) are strictly controlled and guaranteed to remain below 0.1% (1000 mg/kg), fully compliant with FAO specifications and global registration limits.
Enterprise procurement teams can contact Awiner Biotech's dedicated export department with specific requirements: target active concentration, formulation style (WDG/WP/SC), annual metric tonnage, packaging specs, and port of destination. Our regulatory staff will promptly provide a comprehensive dossier quotation along with complete ICAMA, CoA, and SDS documentation.
Awiner Biotech
