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• CAS:

  5,5'-(2-methylpyrimidine-4,6-diyl)diisophthalic acid

• CAS:

  4',4'''-(3,5-dimethylpyridine-2,6-diyl)bis([1,1'-biphenyl]-4-carboxylic acid)

• CAS:1159694-37-7

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  5-(Imidazol-1-ylmethyl)isophthalic acid

• CAS:1352638-29-9

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  5-(3,5-dimethyl-1H-pyrazol-4-yl)isophthalic acid