[Chemical name]: 4”-epi-4”-deoxy-acetylaminoavermectin B1

[Formula and molecular weight]: B1a  C48H72O13C2H4NO  914
                                                            B1b  C47H70O13 C2H4NO  900

[Specification]: white crystalline powder
[Specification]: Enterprise standard, B1 More than 90%
[Specification]: white crystalline powder

[Usage]: It is a broad spectrum and the most efficacious parasiticide of  Avermectin kind with the lowest distribution coefficient drug in milk. Trials show that the product with the concentration of 0.1mg/kg or 0.05mg/kg can efficaciously prevent several kinds of nematodes parasitic on large intestine, small intestine in stomach of cattle and sheep, the efficacy is at least 97%. When it is used on milking cow, concentration ratio in milk and plasma is not more than 0.2, it is the best drug for milking cow currently.
[Storage]: Sealed tightly and stored away from light in a cool and dry place.