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Produce: 4-epi-methylamino-4deoxyavermectin B1 benzoate
The product is a semi-fermented and semi-synthesized insecticide of avermectin type. The intermediate emamectin is synthesized by AVM under certain conditions, and then reacted with benzoic acid to get emamectin benzoate.
Formula and molecular weight
Emamectin benzoate B1a: C49H75NO13 x C7H6O2=1008.26
Emamectin benzoate B1b: C48H73NO13 x C7H6O2=994.23





Description