Dibutyltin bis-(ethylmaleate)

ethyl (Z,Z)-9,9-dibutyl-4,7,11-trioxo-3,8,10-trioxa-9-stannatetradeca-5,12-dien-14-oate

(5Z,12Z)-9,9-Dibutyl-4,7,11-trioxo-3,8,10-trioxa-9-stanna-5,12-tetradecadien-14-oic acid ethyl ester

8,10-Trioxa-9-stannatetradeca-5,12-dien-14-oic acid, 9,9-dibutyl-4,7,11-trioxo-,ethyl ester, (Z, Z)-3 3,8,10-trioxa-9-stannatetradeca-5,12-dien-14-oic acid, 9,9-dibutyl-4,7,11-triox ethyl ester, (z,z)-o 10-trioxa-9-stannatetradeca-5,12-dien-14-oic acid,9,9-dibutyl-4,7,11-trioxo-, ethyl ester, (z,z)-8