Isolable carbocyclic compounds contain seven or fewer carbons in the cycle. 可分离的碳环化合物环内含七个或七个以下的碳。
Carbasugars,carbocyclic analogues of true sugars,are compounds in which the ring-oxygen of furanoid or pyranoid sugars is replaced by methylene group. 碳环糖是一类呋喃或吡喃糖环中的氧原子被亚甲基取代后形成的糖类似物。