| Specie Chimica | Giove | Saturno | Urano | Nettuno |
|---|---|---|---|---|
| H2 | 1 | 1 | 1 | 1 |
| HD | 6 10-5 | 1 10-4 | --- | --- |
| He | 0.11 | 0.03 | 0.18 | 0.23 |
| CH4 | 2 10-3 | 4 10-3 | 2 10-2 | 4 10-2 |
| 13CH4 | 2 10-5 | 4 10-5 | --- | --- |
| CH3 D | 3 10-7 | 4 10-7 | 10-5| 3 10-5 | |
| NH3 | 3 10-4 | 2 10-4 | --- | --- |
| 15NH3 | 10-6 | --- | --- | --- |
| C2H2 | 3 10-8 | 7 10-8 | 10-7 | 1-9 10-7 |
| 12C13CH2 | 3 10-9 | --- | --- | --- |
| C2H6 | 2 10-6 | 3 10-6 | --- | 3 10-6 |
| C3H8 | < 6 10-7 | --- | --- | --- |
| H2O | 10-6 | --- | --- | --- |
| CO | 1.5 10-9 | 2 10-9 | < 4 10-8 | 6 10-7 |