Chemical Name : 3,3',4,4'-biphenyltetracarboxylic di-anhydride
CAS : 2420-87-3
1,2-Dibromo-3,5-difluorobenzene
3-Fluoro-4-methylbenzenesulfonyl chloride
1,2-Diamino-3,4-difluorobenzene
3-Bromo-1-chloro-4-fluorobenzene
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