Copper Sulfate Pentahydrate 733 Third Ave. FL 21New York, NY10017 USATEL: (212) 752-2020FAX: (212) 821 0025 TECHNICAL DATA SHEET Copper Sulfate Pentahydrate (99.5%) Product Description CAS 7758-99-8 Molecular Formula CuSO45H2O Molecular Weight g/mol 249.68 Packing Please contact us for available packing information Download TDS Report