For B2B procurement managers, R&D scientists, and product formulators in the agrochemical and pest control industries, a thorough understanding of technical specifications is crucial when selecting active ingredients. Theta-Cypermethrin (CAS 71697-59-1), a widely utilized synthetic pyrethroid insecticide, comes with specific parameters that dictate its performance and suitability for various applications. This article provides an in-depth look at these specifications and why they matter.

Product Identity: Theta-Cypermethrin
Theta-Cypermethrin is a specific stereoisomer of cypermethrin, a powerful synthetic pyrethroid insecticide. Its CAS Number, 71697-59-1, is the definitive identifier for this chemical compound.

Appearance:
The appearance of Theta-Cypermethrin can vary depending on its grade. The technical grade is typically described as a light yellow to yellow sticky liquid. This visual characteristic is the first indicator of product quality and consistency.

Assay (Purity):
Two primary grades are commonly supplied: 25% EC (Emulsifiable Concentrate) and 95% TC (Technical Concentrate). The assay percentage indicates the concentration of the active ingredient. A high assay for the Technical Grade (95% TC) is essential for formulators who need to ensure the final product has the desired potency. For the 25% EC, the stable homogeneous liquid form is important for ease of use in end-user applications.

Quality Parameters:
Beyond the primary assay, several other quality parameters are critical:

  • Water Content: The moisture content is important for product stability. For the 25% EC, it's typically specified as ≤0.5%, and for the 95% TC, ≤0.2%. Lower water content generally leads to better shelf life and formulation stability.
  • pH: The pH range (typically 4.0~8.0 for 25% EC) is crucial for formulation compatibility and stability, especially when considering mixing with other agrochemical components or adjuvants.
  • Acidity: For the 95% TC, acidity is usually kept very low (≤0.2%), indicating minimal degradation or presence of acidic impurities.
  • Acetone Insoluble Substance: This parameter (≤0.5% for 95% TC) measures the amount of material that does not dissolve in acetone, indicating the absence of particulate contaminants and ensuring product clarity.

Applications:
Understanding these specifications is directly linked to the intended applications. Whether used for protecting crops like cotton, rice, corn, and soybeans, or formulated into products to control mosquitoes and flies in public health, the purity and stability of Theta-Cypermethrin are paramount. As a manufacturer, we ensure that our product consistently meets these demanding specifications, providing confidence to our B2B customers.

Storage and Packaging:
Proper storage conditions (cool, dry, well-ventilated) and appropriate packaging (e.g., 25KG/drum for TC) are vital for maintaining product integrity. We provide detailed guidance on storage to help our clients preserve the quality of the purchased Theta-Cypermethrin.

For companies looking to buy Theta-Cypermethrin, understanding these technical details allows for informed decisions. As a leading supplier in China, we are committed to transparency and providing detailed product specifications to support your procurement needs. Contact us for a quote and to discuss how our Theta-Cypermethrin can meet your specific requirements.