Wiktionary
cyclododecatriene
n. (context organic compound English) A cyclic alkene formed by the cyclotrimerization of butadiene
Wikipedia
Cyclododecatriene
Cyclododecatrienes are cyclic trienes with the formula CH). Four isomers are known for 1,5,9-cyclododecatriene. The trans,trans,cis-isomer is a precursor in the production of nylon-12.