isobutyl acetate

fruity ester

Found in 80 ingredients across the CompKitchen flavor graph.

Look up another compound — search by name, CAS number, PubChem CID, or FEMA #.

2D Lewis Structure

Formula: C6H12O2
Molecular weight: 116.16 g/mol
PubChem CID: 8038 — full record on PubChem

Properties

Odor description: fruit, apple, banana
Odor threshold — orthonasal, in clean water: 66.0 ppb 1 published value · see all 7 with sources
Volatility: high
CAS number: 110-19-0
Retention index: 1008

Not in FEMA GRAS publications 1-33. Of 3,367 listed flavoring substances, none match this compound name. May still be food-safe under other regulatory routes (FDA 21 CFR 172, EFSA, JECFA) — check femaflavor.org for the authoritative current list.

How this molecule is described

Sources disagree about odour more often than they disagree about chemistry. Rather than show one answer, here is every description on file with how many ingredient records carry it.

Also filed as

2-methylpropyl acetate

Same molecule, unified here — previously counted and displayed as separate compounds.

Descriptions on file

Ordered by how many independent descriptor streams give each wording, then by how often it appears. The bar is still replication — one source copied onto many ingredients scores high there — so the two can disagree.

fruit, apple, banana shown above Flavornet Cas, Flavornet Name, Flavordb Odor Column 3 sources agree

—

green, orange FlavorDB 2.0, Flavordb Odor Column 2 sources agree

apple, banana, bitter, ethereal, fruit, fruity, sweet, tropical FlavorDB 2.0

banana, pear, chemical FlavorDB 2.0

fruity FlavorDB 2.0

diffusive fruity, resembling rum, banana-like on dilution FlavorDB 2.0

Bars are the share of ingredient records carrying each description. High agreement means the sources replicate each other — not necessarily that they are right.

Published thresholds

7 measured values from the literature. Grouped by what was actually measured — a threshold smelled in clean water, tasted in the mouth, or measured in a real food are three different quantities and are not pooled.

Orthonasal, in clean water

66.0 ppb

The reference measurement — smelled in water. OAV is computed against this.

Threshold	Matrix	Source	Paper
66.0 ppb	water_odor	Leffingwell	—

In a food matrix

1.0 ppb – 58.0 ppb

Measured in a real food, where the matrix shifts detection — not a clean-water value.

Threshold	Matrix	Source	Paper
1.0 ppb	water (food: apple)	Literature corpus	17499755, 32796601, 33889833 +3
3.2 ppb	water (food: beer)	Literature corpus	17499755, 33889833
7.0 ppb	water (food: wine)	Literature corpus	36496598
20.0 ppb	water (food: tea)	Literature corpus	32796601, 35956905, 36540235
58.0 ppb	water (food: goat milk)	Literature corpus	17499755, 32796601, 33889833 +3

In air

8.0 ppb

Airborne detection — not comparable to a water threshold.

Threshold	Matrix	Source	Paper
8.0 ppb	air	Nagata 2003	—

Only values we can attribute are listed. Where a compendium's licence does not permit public attribution its figures are omitted here, so every number on this page traces to a citable source.

Where you'd actually smell it

Odor Activity Value = measured concentration ÷ odor threshold (13.5 ppb, the engine's canonical value — see the 7 published values). OAV ≥ 1 = perceptible.

Food	Concentration (ppb)	OAV	Source
beer	25630.0	1899 ⚡	DOI
milk	3040.1	225 ⚡	Corpus paper
tea	100.0	7.41	Corpus paper
apple	2.0	0.15	—
wine	1.0	0.07	—

Concentrations from PubMed Central Open Access papers (free literature corpus, MIT-style licensed). Copper = OAV ≥ 10 (strongly perceptible). Green = OAV ≥ 1 (perceptible).

Found in

Measured impact first, then profile share

Every ingredient known to contain isobutyl acetate. Ingredients with a measured concentration come first, ranked by odour activity; the rest follow by how large a share of that ingredient's profile this molecule is. The figure beside each is how many different compounds that ingredient has in total — not the concentration of isobutyl acetate in it. Full concentrations are in the OAV table above.

beer

measured · OAV 1898.52

457 cmpds

527 cmpds

565 cmpds

14 cmpds