Molecule · acid
3-ethylbutanoic acid
Found in 1 ingredient. We hold no measured concentration for it in any of them yet, so we cannot say where it is strong enough to smell.
Working on a formulation or a product line? This compound data is available by API for R&D teams.
- Formula
- —
- Mass
- 116.16 g/mol
- CAS
- 105-43-1
- PubChem
- —
- FEMA
- not listed
- Threshold
- 113 ppb
- Class
- acid
- Status
- —
01How little it takes
- in water 163
- in a food 46
ppb, log scale · tick = median of published values, bar = full range, from open-access paper tables (not reviewed)
02Where it turns up
- Vegetables1
of the 1 ingredient that contain it, by food group
03What it travels with
Too few ingredients to say what it travels with.
What does 3-ethylbutanoic acid smell like?
We hold no odour description for 3-ethylbutanoic acid.
Which foods contain 3-ethylbutanoic acid?
We list 1 ingredient that contain it, but presence is not the same as smell. What matters is how much is there compared with how little it takes to notice it. That ratio is the odour activity value (OAV): above 1, you can smell it.
Found in
Measured foods first, then real food profiles, then thin or composite records (marked). The figure beside each is how many compounds that ingredient has in total, not the amount of 3-ethylbutanoic acid in it. ✓n = sources that recorded the link.
How strong is 3-ethylbutanoic acid?
Our working odour threshold is 113.49 ppb, from 1 source (none by SIDA, so treat it as approximate).
Thresholds in published tables
| Medium | Median | Range | Values | Papers | Papers agree? |
|---|---|---|---|---|---|
| food matrix | 46 ppb | 42.8–280 | 3 | 3 | yes |
| unstated | 701.9 ppb | 10–2.46e+03 | 7 | 4 | no (2.1 decades) |
| water | 163 ppb | 46–280 | 2 | 2 | yes |
Numbers printed in open-access papers, grouped by the medium the table states. Median and full range; “agree” means two or more papers whose middle 80% of values sit within 100×. Not reviewed.
Is 3-ethylbutanoic acid safe to eat?
Not in FEMA GRAS publications 1–33. Of 3,367 listed flavoring substances, none match this compound or its other names. It may still be food-safe under other regulatory routes (FDA 21 CFR 172, EFSA, JECFA); check femaflavor.org for the authoritative current list.
3-ethylbutanoic acid questions
Which foods contain 3-ethylbutanoic acid?
We list 1 ingredient that contain 3-ethylbutanoic acid.
How strong is 3-ethylbutanoic acid?
Our working odour threshold for 3-ethylbutanoic acid is 113 ppb.
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Cite this analysis
Compound Kitchen (2026). 3-ethylbutanoic acid compound data sheet. https://compkitchen.com/compound/3-ethylbutanoic%20acid. Accessed 2026-11-03.
@misc{compkitchen_compound_3_ethylbutanoic_acid_compound_data_sheet_2026,
title = {3-ethylbutanoic acid compound data sheet},
author = {{Compound Kitchen}},
year = {2026},
url = {https://compkitchen.com/compound/3-ethylbutanoic%20acid},
note = {Accessed: 2026-11-03}
}
Methodology DOI: 10.5281/zenodo.19719459 · CC BY 4.0 · Citations are a request, not a requirement.