|   | 
| Primary (First) - gassy | 
| FL |  | diethyl disulfide | 
|  | odor: gassy ripe onion greasy garlic | 
|  | flavor: gassy onion | 
|   | 
| Secondary (Second) - gassy | 
|   | 
| Tertiary (Third) - gassy | 
| FL/FR |  | dimethyl trisulfide | 
|  | odor: Sulfureous, alliaceous, cooked, savory, meaty, eggy and vegetative with a fresh, green, onion topnote | 
|  | flavor: Sulfureous, alliaceous, gassy, savory and meaty with a fresh, vegetative nuance | 
|   | 
| Quaternary (Fourth) - gassy | 
|   | 
| Quinary (Fifth) - gassy | 
| FL |  | methyl thioacetate | 
|  | odor: sulfurous eggy cheese dairy vegetable cabbage | 
|  | flavor: sulfurous overripe rotten roasted | 
|   | 
| Senary (Sixth) - gassy | 
|   | 
| Septenary (Seventh) - gassy | 
|   | 
| Octonary (Eighth) - gassy |