Chemical Name : 3,3',4,4'-biphenyltetracarboxylic di-anhydride
CAS : 2420-87-3
1,4-Diiodobenzene
1,3-Diiodobenzene
2, 3-Difluoronitrobenzene
2,2'-Bis-trifluoromethoxy-biphenyl-4,4'-diamine
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