Eprinomectin(CAS:123997-26-2)
Origin
It is a semi-synthesized product of fermented Avermectin B1.
Chemical name
4”-epi-4”-deoxy-acetylaminoavermectin B1
Formula and molecular weight:
B1a C48H72O13 C2H4NO 914
B1b C47H70O13 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, insoluble 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%.
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Items
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Standards
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Appearance
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White or light yellow crystalline powder
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Identification
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IR
HPLC
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Heavy metals
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0.002%max
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Residue on ignition
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0.2%max
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Specific optical rotation
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+160°- +175°
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Loss on drying
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5.0%max
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Relevant substance
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Any other individual impuritites:2.0%max
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Total: 6.0%max
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Disregard limit: 0.05%max
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Purity(on dry basis)
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B1(B1a+B1b): 90.0%min
B1a: 85.0%min
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