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Catsyn? Benzoic acid, 4,4',4''-[(2,4,6-trimethyl-1,3,5-benzenetriyl)tri-2,1-ethynediyl]tris- | CAS 1133384-24-3?? ?? ??? ?????. ? ??? C36H24O6??, ???? 552.57g/mol??, ??? ????? NLT 98%???.