| crotononitrile (CH3(CH)2CN) | 2.5 × 10–7 |
| butanenitrile (CH3(CH2)2CN) | 5.0 × 10–7 |
| isobutyronitrile ((CH3)2CHCN) | 2.0 × 10–7 |
| cyanocyclopropane (Δ−CN) | 1.5 × 10–7 |
| crotononitrile (CH3(CH)2CN) | 2.5 × 10–7 |
| butanenitrile (CH3(CH2)2CN) | 5.0 × 10–7 |
| isobutyronitrile ((CH3)2CHCN) | 2.0 × 10–7 |
| cyanocyclopropane (Δ−CN) | 1.5 × 10–7 |