2-乙基-5-甲基噻吩

3-ethyl-2,5-dimethylthiophene

4,6,12,14-tetramethyl-9-oxa-5,13-dithiatricyclo<9.3.0.03,7>tetradeca-1(14),3,6,11-tetraene

6,8-dimethyl-1,5-dihydrothieno[3,4-e][1,3]dioxepine

2,3-二甲基-1,3-丁二烯