isobutyrate

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 description: pleasurable
Odor threshold — in a food matrix: 0.840 ppb 1 published value · see all 1 with sources
CAS number: 5711-69-3

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

? Partial match

FEMA number: 4134
GRAS publication: GRAS 22
FEMA primary name: 2,4-Hexadienyl isobutyrate

Reported use levels (ppm by food category)

Typical vs maximum reported addition levels in finished food. Use as a regulatory ceiling reference — verify against the current GRAS publication for your product category.

Food category	Typical (ppm)	Maximum (ppm)
baked goods	0.5	10
beverages (alcoholic)	2	20
beverages (nonalcoholic)	2	20
breakfast cereal	0.5	10
chewing gum	1	20
confectionery frostings	5	25
frozen dairy	1	20
fruit ices	1	20
gelatins/ puddings	5	25
hard candy	1	10
jams/jellies	5	25
milk products	5	25
processed fruits	5	25
seasonings/ flavors	1	20
soft candy	1	10
sweet sauces	1	25

Source: FEMA GRAS publications 1-33. 12 related FEMA records for this name — verify the exact substance for regulatory use.

Published thresholds

1 measured value 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.

In a food matrix

0.840 ppb

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

Threshold	Matrix	Source	Paper
0.840 ppb	water (food: tomato)	Literature corpus	28050733

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 (0.84 ppb, the engine's canonical value — see the 1 published values). OAV ≥ 1 = perceptible.

Food	Concentration (ppb)	OAV	Source
tomato	1.1	1.33	—

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 isobutyrate. 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 isobutyrate in it. Full concentrations are in the OAV table above.

carob

plant

241 cmpds

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