butanoic acid butyl ester

fruity ester

Found in 1 ingredient across the CompKitchen flavor graph.

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

Properties

Odor threshold — orthonasal, in clean water: 100 ppb 1 published value · see all 6 with sources
CAS number: 109-21-7
Retention index: 1214

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.

Published thresholds

6 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

100 ppb

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

Threshold	Matrix	Source	Paper
100 ppb	water_odor	Leffingwell	—

In a food matrix

10.0 ppb – 501 ppb

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

Threshold	Matrix	Source	Paper
10.0 ppb	water (food: tea)	Literature corpus	32796601, 35956905
12.5 ppb	water (food: unknown)	Literature corpus	32796601, 35956905
87.0 ppb	water (food: goat milk)	Literature corpus	32796601, 35956905
501 ppb	water (food: peanut)	Literature corpus	32796601, 35956905

In air

4.8 ppb

Airborne detection — not comparable to a water threshold.

Threshold	Matrix	Source	Paper
4.8 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.

Found in

Measured impact first, then profile share

Every ingredient known to contain butanoic acid butyl ester. 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 butanoic acid butyl ester in it.

strawberry

berry

479 cmpds

Into the chemistry?

Get a molecule-level pairing breakdown each week — which ingredients share a compound, and why it matters at the table. Free, no spam.

Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Try the pairing tools to see which ingredient combinations rely on butanoic acid butyl ester, or compare two ingredients side-by-side.