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Product details are as follows:   Product Name Dihydrostreptomycin sulphate Molecular Formula 2(C21H41N7O12)·3(H2SO4)  Product use Verterinary medicine raw materials Character of product a white powder Packing 20Bou/Drum PH 5.0~7.0 Specific optical rotation -83°~-91° Heavy metals ≤20ppm sterility sterile Sulpahate ash ≤1%