... ,4,5,6,7) CAS No: 10034-99-8 (MgSO47H2 magnesium sulphate Molecular Formula: MgSO4nH2O(n=0,1,2,3,4 ... , Food additive, Feed additive, Ferment, Plastics, Fertilizer , Commodity etcs.Packing: in 25kgs PP bags or as requested magnesium sulphate heptasulphate 99.5%