24184-03-0
trans-1,2-dibromo-3,4-dimethyl-3-cyclobutene
→
24172-05-2
(1Z,3z)-1,4-二碘-2,3-二甲基-1,3-丁二烯
5291-90-7
3,4-dimethylidenecyclobutene
24184-04-1
3r,4t-diiodo-1,2-dimethyl-cyclobutene