| Primary (First) - walnut |
| FL | | walnut distillates |
| | flavor: nutty walnut |
| FL | | walnut flavor |
| FL | black | walnut flavor |
| FL | english | walnut flavor |
| Secondary (Second) - walnut |
| FL | | banana walnut bread flavor |
| FL | | caramel walnut shortbread flavor |
| FL | | cranberry walnut flavor |
| FL | | maple walnut flavor |
| FL/FR | | pentanoic acid, 3-methyl-2-oxo-, ethyl ester |
| | odor: nutty black walnut aroma, accompanied by woody nuances and a subtle herbaceousness |
| | flavor: fresh nutty notes of walnut, dry, woody |
| FL | | raisin walnut flavor |
| Tertiary (Third) - walnut |
| Quaternary (Fourth) - walnut |
| Quinary (Fifth) - walnut |
| FL/FR | (±)-3- | methyl-gamma-decalactone |
| | odor: fruity lactonic green peach waxy floral oily tropical buttery |
| | flavor: waxy fatty green nutty walnut lactonic nut skin oily |
| Senary (Sixth) - walnut |
| FL/FR | 2,3- | dimethyl pyrazine |
| | odor: nutty nut skin cocoa peanut butter coffee walnut caramellic roasted |
| | flavor: nutty nut skin peanut cocoa roasted coffee walnut corn chip bready |
| Septenary (Seventh) - walnut |
| Octonary (Eighth) - walnut |