503-17-3
2-丁炔
→
35418-79-2
1,2,3-trimethyl-4-methylidenecyclobutene
90112-21-3
90089-42-2
90086-62-7
90002-77-0
3-chloro-1,2,3-trimethyl-4-methylidenecyclobutene
1194-30-5
3,4-二氯-1,2,3,4-四甲基环丁烯