... -73ºIdentificationPositivepH4.0 to 6.0Loss on Drying3.5% maxSulphate (Dried Basis)16.0 to 18.0 %Sulphated Ash1.0% maxTotal ... Impurities23.0% maxAssay HPLC (Dried Basis)Sum of E1,E2,E1-I,E1-7MOA,E377 ... .0% minPotency (Dried Basis)19,000 IU/mg min[Characteristic] 1) Improve growth ...