英文别名PBT Impurity 3; cyclo-Tetrakis-tetramethylenterephthalat; Cyclotetrakis; 3,8,12,17,21,26,30,35-octaoxa-1,10,19,28(1,4)-tetrabenzenacyclohexatriacontaphan-2,9,11,18,20,27,29,36-octaone; butyleneterephthalatecyclictetramer; Polybutylene Terephthalate Cyclic Tetramer; PBT4; BUTYLENE TEREPHTHALATE CYCLIC TETRAMER 
