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Catsyn? Tetrahydrophthalicanhydride | CAS 935-79-5?? ?? ??? ?????. ? ??? C8H8O3??, ???? 152.15g/mol??, ??? ????? NLT 98%???.
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[1,1':2',1''-Terphenyl]-3,3'',5,5''-tetracarboxylic acid, 3',4',5',6'-tetrakis(3,5-dicarboxyphenyl)-
2,5-Dibromonitrobenzene
2-Methoxy-3-chloro-5-bromopyridine