| Isovalerylcarnitine+Methylbutyrylcarnitine (C5) | — |
| Isovalerylcarnitine+Methylbutyrylcarnitine (C5)/Acetylcarnitine (C2) | — |
| Isovalerylcarnitine+Methylbutyrylcarnitine (C5)/Carnitine free (C0) | — |
| Isovalerylcarnitine+Methylbutyrylcarnitine (C5)/Octanoylcarnitine (C8) | — |
| Isovalerylcarnitine+Methylbutyrylcarnitine (C5)/Propionylcarnitine (C3) | — |