英文别名
1,2,3-Trimethyl-4-methylen-cyclobuten-(2);Trimethyl-methylen-cyclobuten;1-Methylen-2,3,4-trimethylcyclobuten-2;2,3,4-Trimethyl-1-methylen-cyclobuten-(2);1,2,3-Trimethyl-4-methylen-cyclobuten;1,2,4-Trimethyl-3-methylen-cyclobuten;1,2,3-Trimethyl-4-methylidenecyclobut-1-ene;1,2,3-trimethyl-4-methylidenecyclobutene