Specification Ibandronate SodiumChemical Name 1 Hydroxy 3(N ) Methly 3(N) n Pentylamino,1,1 Bisphosphonic AcidMolecular Formula C9H22O7NP2NaH2OMolecular Weight 359.17Test SpecificationDescription White crystalline powderSolubility Soluble in water, not soluble in alcoholLoss on Drying Limit : 4.5% - 8.5%Chloride Limit : Max. 0.005%Sulphate Limit : Max. 0.005%Heavy Metals Limit : Max. 0.001%Related Substance Limit : Max. 0.5%Phosphite Limit : Max. 0.3%Assay (By HPLC) Limit : Min. 99.5%