Overview
Azoxystrobin is a systemic fungicide belonging to the strobilurin class, first introduced in the 1990s. It is widely used in agriculture due to its broad-spectrum activity against a variety of fungal pathogens. The compound works by inhibiting mitochondrial respiration in fungi, effectively preventing spore germination and mycelial growth. Azoxystrobin is favored for its ability to protect crops at different growth stages, offering both preventive and curative effects. Its systemic nature allows it to be absorbed by plants and distributed throughout their tissues, providing long-lasting protection. This makes it a key component in integrated pest management (IPM) programs.
Physical and Chemical Properties
Azoxystrobin is a crystalline powder with a molecular weight of 403.39 g/mol. It has a melting point of 116-120°C and a density of 1.34 g/cm³. The compound is slightly soluble in water (6 mg/L at 20°C) but readily dissolves in organic solvents like acetone and methanol. Its stability under normal storage conditions makes it suitable for long-term use. However, it degrades under strong alkaline or acidic conditions, which should be considered during formulation and application. The low volatility of azoxystrobin minimizes environmental drift, enhancing its suitability for field applications.
Main Applications
Azoxystrobin is primarily used to control fungal diseases in a wide range of crops, including cereals, grapes, potatoes, and vegetables. It is effective against pathogens like powdery mildew, rust, and leaf spot. The fungicide is often applied as a foliar spray, seed treatment, or soil drench, depending on the target disease and crop. In addition to agricultural uses, azoxystrobin is employed in turf management and ornamental plant protection. Its versatility and efficacy have made it a staple in modern fungicide regimens, contributing to higher crop yields and quality.
Safety and Storage
Azoxystrobin is classified as low-toxicity to mammals but poses risks to aquatic organisms and non-target insects. Proper handling includes wearing gloves, goggles, and protective clothing to avoid skin and eye contact. Inhalation of dust should be prevented by using masks or working in well-ventilated areas. Storage recommendations include keeping the product in its original container, tightly sealed, and away from heat and moisture. In case of spills, absorb with inert material and dispose of according to local regulations. Always follow label instructions and safety data sheets (SDS) for specific guidance.
B2B Procurement Guide
When purchasing azoxystrobin, verify the CAS number (131860-33-8) and purity specifications to ensure product authenticity. Reputable suppliers should provide certificates of analysis (CoA) and comply with Good Manufacturing Practices (GMP). Consider bulk purchasing for cost savings, but ensure proper storage facilities are available. Check local agricultural regulations to confirm approved uses and application rates. Negotiate terms for delivery, payment, and after-sales support to optimize procurement efficiency.
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