... DTPA 99%min (CAS: 67-43-6) should be stored in a cool, dry place, e.g.: a tightly closed container ... min (Diethylenetriaminepentaacetic Acid, CAS: 67-43-6) is primarily used as a metal ion chelator. 2. DTPA 99%min ( ... Diethylenetriaminepentaacetic Acid, CAS: 67-43-6) has found countless applications in many industries, such as papermaking, textiles, food, medicine, agriculture ...