Pyrithiobac-sodium

Pyrithiobac-sodium is a selective post-emergence herbicide primarily used in cotton fields to control a wide range of broadleaf weeds. When sourcing, you must verify the Active Ingredient (AI) content, typically available in 95% TC (Technical Concentrate) or formulated as 80% WP (Wettable Powder) and 10% SC (Suspension Concentrate). It works by inhibiting the acetolactate synthase (ALS) enzyme, so ensure the product particle size in SC formulations is fine enough to prevent nozzle clogging during application.

As a hazardous chemical/pesticide, the supplier must provide a valid MSDS (Material Safety Data Sheet) and a COA (Certificate of Analysis) for every batch. For cross-border trade, ensure the manufacturer holds an ICAMA (Institute for the Control of Agrochemicals, Ministry of Agriculture) export clearance in China. Furthermore, the product must comply with the FAO (Food and Agriculture Organization) specifications and regional registrations such as EPA (USA) or REACH (EU) if applicable to your target market.

Buyers should prioritize suppliers who offer HPLC (High-Performance Liquid Chromatography) testing reports to confirm purity levels. It is critical to check the pH stability range (usually between 5.0 and 9.0) and moisture content (for powder forms), as excess moisture can lead to caking and reduced efficacy. Requesting a pre-shipment sample for third-party lab testing (e.g., SGS or Pony Testing) is highly recommended for bulk orders.

This product is classified under UN Class 9 (Environmentally Hazardous Substances) for transport. You must ensure the supplier uses UN-approved packaging, such as fluorinated bottles or high-density polyethylene (HDPE) drums, to prevent leakage. Always confirm the IMDG (International Maritime Dangerous Goods) coding with your freight forwarder to avoid port rejection or heavy fines.

Utilize Trade Assurance services on Made-in-China.com to protect your capital until the goods are verified. For large-scale chemical sourcing, use Letter of Credit (L/C) or Escrow payments. Avoid direct transfers to private bank accounts. Additionally, verify if the supplier is a 'Diamond Member' or 'Audited Supplier' on Made-in-China.com to ensure they have undergone rigorous on-site factory inspections.

The price of Pyrithiobac-sodium is heavily influenced by the cost of raw materials (like 2-amino-4,6-dimethoxypyrimidine) and environmental protection policies in China. To secure better rates, consider off-season purchasing and signing annual framework agreements to lock in prices. Negotiate for a 5-10% volume discount when ordering quantities exceeding 1 metric ton, and always clarify the Incoterms (typically FOB or CIF) to avoid hidden logistics surcharges.