| extension | φ:Q→Aut N | d | ρ | Label | ID |
|---|
| C2.1(C22×C4) = C2×C22⋊C4 | central stem extension (φ=1) | 16 | | C2.1(C2^2xC4) | 32,22 |
| C2.2(C22×C4) = C2×C4⋊C4 | central stem extension (φ=1) | 32 | | C2.2(C2^2xC4) | 32,23 |
| C2.3(C22×C4) = C42⋊C2 | central stem extension (φ=1) | 16 | | C2.3(C2^2xC4) | 32,24 |
| C2.4(C22×C4) = C4×D4 | central stem extension (φ=1) | 16 | | C2.4(C2^2xC4) | 32,25 |
| C2.5(C22×C4) = C4×Q8 | central stem extension (φ=1) | 32 | | C2.5(C2^2xC4) | 32,26 |
| C2.6(C22×C4) = C2×M4(2) | central stem extension (φ=1) | 16 | | C2.6(C2^2xC4) | 32,37 |
| C2.7(C22×C4) = C8○D4 | central stem extension (φ=1) | 16 | 2 | C2.7(C2^2xC4) | 32,38 |