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Catsyn? 1,3-DI(4-Carboxyphenyl)benzene | CAS 13215-72-0?? ?? ??? ?????. ? ??? C20H14O4??, ???? 318.32g/mol??, ??? ????? NLT 98%???.
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(4-Pepa) 4-phenylethynylphthalic anhydride
4,4'-Dibromo-2,2'-diiodo-1,1'-biphenyl
2-Bromoanthraquinone