Cyclic Hydrocarbons 1,2,3,4-tetrahydronaphthalene CAS 119-64-2 Cyclic Hydrocarbons Cyclobutane CAS 287-23-0 Cyclic Hydrocarbons Cyclooctane CAS 292-64-8 Cyclic Hydrocarbons Cyclopentane CAS 287-92-3 Cyclic Hydrocarbons Cyclopentene, 1-methyl- CAS 693-89-0 Cyclic Hydrocarbons Cyclopropane CAS 75-19-4 Cyclic Hydrocarbons methylcyclohexane CAS 108-87-2 Cyclic Hydrocarbons n-cycloheptane CAS 291-64-5 Cyclic Hydrocarbons n-cyclohexane CAS 110-82-7