Aolisenchem provides chemical intermediates 3,3',4,4'-Biphenyltetracarboxylic dianhydride CAS#2420-87-3, it is a monomer which can be used in the production of some polyimides.
Appearance: white to off-white powder
Density: 1.625 g/cm3
Boiling Point: 614.9ºC at 760mmHg
Melting Point: 299-305ºC
Signal word: Warning
H319 Causes serious eye irritation
Consult a physician. Show this safety data sheet to the doctor in attendance.
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
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