可分离的碳环化合物环内含七个或七个以下的碳。
Isolable carbocyclic compounds contain seven or fewer carbons in the cycle.
本文介绍两种确定有机碳环化合物分子中氢原子数的方法。
The article is to recommend two ways of defining the Numbers of hydrogen atoms in the molecules of organic carbocycle compounds.
嘌呤：嘌呤是对由碳、氮原子组成的双环结构的杂环化合物的统称。
Purine: Any of a class of heterocyclic compounds with a two-ring structure composed of carbon and nitrogen atoms.
嘌呤：嘌呤是对由碳、氮原子组成的双环结构的杂环化合物的统称。
Purine: Any of a class of heterocyclic compounds with a two-ring structure composed of carbon and nitrogen atoms.
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