29278-67-9

PBT Impurity 7 O,O'-Butane-1,4-diyl bis(4-hydroxybutyl) diterephthalate O,O'-Butane-1,4-diyl bis(4-hydroxybutyl) diterephthalate 1.4-Bis-[4-(4-hydroxy-butyloxycarbonyl)-benzoyloxy]-butan 1,4-Benzenedicarboxylic acid, 1,4-butanediyl bis(4-hydroxybutyl) ester (9CI)