英文名称:Fatty acids, C18-unsatd., dimers, polymers with 2,2-1,4-butanediylbis(oxymethylene)bisoxirane and hexahydro-1,3-isobenzofurandione; Fatty acids, C18-unsatd., dimers, polymers with 2,2'-(1,4-butanediylbis(oxymethylene))bis(oxirane) and hexahydro-1,3-isobenzofurandione