1. A colorless, flammable, liquid cycloalkane, C5H 10, derived from petroleum and used as a solvent and motor fuel.

2. In addition, the activity mechanism of phenylsulfonyl cycloalkane carboxylates was also investigated based on the relevant QSAR models.

3. And cycloalkane without substitute group is hard to be attacked by microorganism, therefore could exist for a long time, abiding and destroying the environment seriously.

4. The amount percent of alkanes, aromatic hydrocarbon, cycloalkane and chlohydrocarbon reaches 56.1%, which are the most prevalent compounds in indoors air of Hangzhou.

5. The hydrogenation saturation of aromatics and selective ring opening of cycloalkane were the most important process during deep dearomatization of diesel oil.