butenoic acid
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
- pear, chemical
- Odor threshold
- 12600.0 ppb (1 source, non-SIDA)
- CAS number
- 556-61-6
FEMA GRAS — Generally Recognized As Safe for flavoring use
- FEMA number
- 4138
- GRAS publication
- GRAS 22
- FEMA primary name
- 4-Hydroxy-2-butenoic acid gamma-lactone
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) |
|---|---|---|
| beverages (alcoholic) | 3.5 | 5 |
| meat products | 3.8 | 505 |
Where you'd actually smell it
Odor Activity Value = measured concentration ÷ odor threshold (12600.0 ppb). OAV ≥ 1 = perceptible.
| Food | Concentration (ppb) | OAV | Source |
|---|---|---|---|
| liver | 3.0 | 0.00 | — |
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 shareEvery ingredient known to contain butenoic acid. 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 butenoic acid in it. Full concentrations are in the OAV table above.
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Try the pairing tools to see which ingredient combinations rely on butenoic acid, or compare two ingredients side-by-side.