| Primary (First) - acidic |
| CS | | acetum |
| FL/FR | iso | butyric acid |
| | odor: acidic sour cheese dairy buttery rancid |
| | flavor: acidic sour cheesy limburger cheese dairy creamy |
| FL/FR | | cyclohexyl acetic acid |
| | odor: Sharp acidic, fatty cheesy, musty, powdery, honey and caramellic |
| | flavor: Honey, caramallic, maple and cocoa |
| FL | 2,4- | dimethyl-2-pentenoic acid |
| | odor: acidic fruity cheese honey |
| | flavor: Tangy, acidic and cheesy with ripe, fruity and animal nuances |
| FL/FR | 2- | ethyl butyric acid |
| | odor: acidic fruity whiskey dry berry |
| | flavor: Acidic, fruity, tropical with a creamy aftertaste |
| CS | | hibiscus rosa-sinensis flower extract |
| | flavor: acidic astringent cooked fruity vegetable |
| FL/FR | 2- | methyl butyric acid |
| | odor: pungent acid roquefort cheese |
| | flavor: Fruity, dirty, acidic with a dairy buttery and cheesey nuance |
| FL/FR | 2- | methyl hexanoic acid |
| | odor: Acidic, oily, fatty, lard and chicken fat with roasted and roasted savory nuances |
| | flavor: Oily, creamy, dairy and fatty |
| FL | (E)-2- | pentenoic acid |
| | odor: acidic feta cheese buttery |
| | flavor: sour acetic buttery |
| FL/FR | | phenyl pyruvic acid |
| | odor: sweet acidic honey almond weedy phenolic green |
| | flavor: sweet phenolic grassy honey vegetable |
| FL | | propionic acid |
| | odor: pungent acidic cheesy vinegar |
| | flavor: Acidic, dairy with a pronounced fruity lift |
| FL | | pyruvaldehyde |
| | odor: Sweet, acidic, etherial, brown, with a rummy nuance |
| | flavor: Sweet, caramellic with a dairy creamy nuance |
| FL | | pyruvic acid |
| | odor: sharp sour acetic caramellic |
| | flavor: caramellic brown sugar |
| FL/FR | | rum ether |
| | odor: Empyromatic, acidic, woody, burnt, with meaty and whiskey notes |
| | flavor: Burnt, smoky, woody, caramellic with rum and brandy notes |
| FL/FR | | valeric acid |
| | odor: Acidic and sharp, cheese-like, sour milky, tobacco, with fruity nuances |
| | flavor: Acidic, dairy-like with milky and cheese nuances |
| Secondary (Second) - acidic |
| FL/FR | | cyclohexyl carboxylic acid |
| | odor: Fruity, acidic, metallic, with a cheesy tropical fruit nuance |
| | flavor: Fruity, woody, berry-like with green dirty nuances |
| FL/FR | | ethyl lactate |
| | odor: sharp tart fruity buttery butterscotch |
| | flavor: Sweet, fruity, creamy, pineapple-like with a caramellic brown nuance |
| FL | | formic acid |
| | odor: pungent vinegar formyl |
| | flavor: Acetic, astringent, fruity, mustard, bready, with a pyruvic acid nuance |
| FL/FR | | levulinic acid |
| | odor: sweet caramel acidic acetoin buttery |
| | flavor: Acidic, sweet, creamy and slight dairy |
| FL/FR | 2- | methyl-2-pentenoic acid |
| | odor: dry acid sweaty strawberry woody fruity jam |
| | flavor: Sour, acidic, sweaty, berry- and fruit-like |
| FL | 3- | methyl valeric acid |
| | odor: Animalic, sharp acidic cheesey, green with a fruity sweaty nuance |
| | flavor: Sour, cheesey, fresh with fruity notes |
| Tertiary (Third) - acidic |
| FL | | acetic acid |
| | flavor: pungent sour overripe fruit |
| FL/FR | | geranic acid |
| | odor: dry weedy acidic green moldy feet woody |
| | flavor: dry weedy musty green woody |
| | (R)-1- | hexen-3-ol |
| | odor: green earthy acid meat |
| FL | | methyl thio isovalerate |
| | odor: Sharp ripe cheesy, sulfurous, acrid fermented with tomato, mushroom and potato vegetative notes and dairy cheesy nuances |
| | flavor: Intense fermented, creamy dairy and cheesy with vegetative nuances |
| FL | | prunus spinosa extract |
| | odor: berry, plum, sweet, acidic and sour with a juicy nuance |
| | flavor: Berry, fruity, raspberry, blueberry and juicy with a tart and sour aftertaste |
| FL/FR | iso | valeric acid |
| | odor: sour stinky feet sweaty cheese tropical |
| | flavor: Cheesey, dairy, creamy, fermented, sweet, waxy and berry |
| Quaternary (Fourth) - acidic |
| FL | | glyceryl tributyrate |
| | odor: Cheese, waxy, fatty, acidic |
| | flavor: Bitter, waxy, fatty, cheese and butter nuances |
| | | rue flower oil colombia |
| FL/FR | | rue oil |
| | odor: sharp herbal fruity orange acrid |
| | flavor: rue |
| FL/FR | | rue oil cuba |
| | odor: sharp herbal fruity orange acrid |
| Quinary (Fifth) - acidic |
| FL | | triacetin |
| | odor: mild clean tropical fruity |
| | flavor: creamy with an oily mouthfeel |
| Senary (Sixth) - acidic |
| FL | (Z)-3- | hexenoic acid |
| | odor: green grass sweaty fruity cheesy acid |
| FL | 4- | hexen-3-one |
| | odor: pungent ethereal spicy green tropical metallic |
| | flavor: Etherial, whiskey-Iike and metallic, fruity with tropical nuances |
| Septenary (Seventh) - acidic |
| FL/FR | (Z)-3- | hexen-1-yl 2-methyl butyrate |
| | odor: fresh green apple sweet fruity pear |
| | flavor: Fresh green apple and pear with a waxy skin like nuance |
| Octonary (Eighth) - acidic |