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1.Product Name：Pyromellitic dianhydride(PMDA)

2.CAS NO.:89-32-7

3. Structural Formula: 

4. Molecular Formula: C₁₀H₂O₆ 

5. Quality indexes:

6.PACKING AND RESERVATION
External Package is plastic barrel or Fiber Drum (or use iron barrel according to customer's request), 20-200kg/barrel. Internal Package is polyethylene cuticle bag, Store in shady and dry place,and keep off heart sourc
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