1,4-苯二羧酸, 二甲基酯, 聚合 1,4-丁二醇, 己二酸和 1,1-亞甲基二4-異氰酸基苯 1-(5-amino-2-methyl-3-sulphophenyl)-4,5-dihydro-5-oxo-1H-pyrazole-3-carboxylicacid

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