1-chloro-5-ethyl-4-methyl-3-heptenetrans-7-chloro-3-ethyl-4-methyl-3-heptene7-chloro-3-ethyl-4-methyl-3-heptenecis-7-chloro-3-ethyl-4-methyl-3-heptene1-chloro-3-pentenyl-2-pentene