Chemical Name : 3,3',4,4'-biphenyltetracarboxylic di-anhydride
CAS : 2420-87-3
1,2,4,5-Tetrachlorobenzene
1,2-difluoro-3,4,5-tribromobenzene
1,3-Dibromo-5-fluoro-2-iodobenzene
1,2,5-Tribromo-3-chlorobenzene
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