Synonyms: 2-Butenedioc acid (Z), dibutyl ester, chloroethene polymer;2-Butenedioic acid (Z)-, dibutyl ester, polymer with chloroethene;2-butenedioic acid (z)-, dibutyl ester, polymer withchloroethene;2-Butenedioic acid(Z)-,dibutyl ester,polymer with chloroethene