2,5-二甲基-1,5-己二烯

4-Hexen-2-ol, 2,5-dimethyl-

3,4-dilithio-2,5-dimethyl-2,4-hexadiene

2,2,5,5-四甲基四氢呋喃

2,5,5,8-tetramethylnona-1,6,7-trien-4-one