Origin?

It is a semi-synthesized product of fermented Avermectin B1.

Chemical name??

4”-epi-4”-deoxy-acetylaminoavermectin B1

Formula and molecular weight???

B_1a????C₄₈H₇₂O₁₃?C₂H₄NO? 914

B_1b????C₄₇H₇₀O_13?C₂H₄NO? 900

Ingredients: The purity of B1 is at least 90% in dry product.

Description:?This product is white?or?light yellow crystalline powder.

Melting point

163.3-165.7℃

?Solubility

The product is easily soluble in ethanol, methanol, ethyl acetate and the like, not soluble in water.

Usage:

It is not only a broad spectrum and the most efficacious pesticide of? Avermectin kind, but also one of the lowest distribution coefficient of this kind in milk. Trials show that the product with the concentration of 0.1mg/kg?or?0.05mg/kg can efficaciously prevent seven kinds of nematodes parasitic on large intestine, small intestine and stomach of cattle and sheep, the efficacy is shown as at least 97%. When it is used to cow in milk, concentration ratio in milk to in plasma is not more than 0.2. It has the advantage over other drugs against nematodes parasitic on cow during milking.

Formulations??:(1)90%Tech,(2) Injection: 1%；(3)Pour –on:0.5%.