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Catsyn? N,N'-bis-(4-methylphenyl)-N,n'-diphenyl-benzidine | CAS 20441-06-9?? ?? ??? ?????. ? ??? C38H32N2??, ???? 516.67g/mol??, ??? ????? NLT 98%???.
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Manganese methionine
1,3,6,8-Tetrakis(4-aminophenyl)pyrene
N,N'-bis(naphthalene-2-YL)-N,n'-bis(phenyl)benzidine