| Name | Format | # Lines | Size | Date |
|---|---|---|---|---|
| Benzene | Text File | 44 | 995b | 1991-11-13 |
| Cyclobutane nonplanar | Text File | 44 | 995b | 1991-11-13 |
| Cyclobutane planar | Text File | 44 | 995b | 1991-11-13 |
| Cyclobutene | Text File | 40 | 865b | 1991-11-13 |
| Cyclohexadiene 1,3 | Text File | 48 | 1KB | 1991-11-13 |
| Cyclohexadiene 1,4 | Text File | 48 | 1KB | 1991-11-13 |
| Cyclohexane boat | Text File | 56 | 1KB | 1991-11-13 |
| Cyclohexane chair | Text File | 56 | 1KB | 1991-11-13 |
| Cyclohexane twistboat | Text File | 56 | 1KB | 1991-11-13 |
| Cyclohexene | Text File | 52 | 1KB | 1991-11-13 |
| Cyclopentadiene | Text File | 42 | 930b | 1991-11-13 |
| Cyclopentane envelope | Text File | 50 | 1KB | 1991-11-13 |
| Cyclopentane planar | Text File | 50 | 1KB | 1991-11-13 |
| Cyclopentene | Text File | 46 | 1KB | 1991-11-13 |
| Cyclopropane | Text File | 38 | 800b | 1991-11-13 |
| Cyclopropene | Text File | 34 | 670b | 1991-11-13 |