Empirical Formula: C7h5o4sna CAS No.: 1008-72-6 Molecular Weight: 208.00 Physical Appearance: White or off white powder Clarity of 10%: Solution should be clear and free from any impurity Moisture Content: 12% Max. Chlorides: 5% Max. Purity: As Oxime Method: 85.00% Min. Water Insolubles: 0.02% Max. Ph of 1% Solution: 7.5% to 10%