... ,1,2,3,4,5,6,7) CAS No: 10034-99-8 (MgSO47H2 magnesium sulphate Molecular Formula: MgSO4nH2O(n=0,1 ... ,1,2,3,4,5,6,7)CAS No: 10034-99-8 (MgSO47H2O)7487-88-9 (MgSO4 )Specification (Up to USP ... : in 25kgs PP bags or as requested magnesium sulphate heptasulphate 99.5%