Aroma molecule · aldehyde
2/3-methylbutanal
Smells ofcocoa, roasted
Found in 2 ingredients. We hold no measured concentration for it in any of them yet, so we cannot say where it is strong enough to smell.
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- Formula
- —
- Mass
- —
- CAS
- —
- PubChem
- —
- FEMA
- not listed
- Threshold
- 164 ppb
- Class
- aldehyde
- Status
- Aroma-active
01How little it takes
No published odour threshold on file for 2/3-methylbutanal.
02Where it turns up
- Other2
of the 2 ingredients that contain it, by food group
03What it travels with
Too few ingredients to say what it travels with.
What does 2/3-methylbutanal smell like?
Sources describe it as cocoa, roasted.
How this molecule is described
Also filed as: 2/3-methyl butanal — same molecule, unified here.
Which foods contain 2/3-methylbutanal?
We list 2 ingredients 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 2/3-methylbutanal in it. ✓n = sources that recorded the link.
How strong is 2/3-methylbutanal?
Our working odour threshold is 164.0 ppb.
Is 2/3-methylbutanal 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.
2/3-methylbutanal questions
What does 2/3-methylbutanal smell like?
Sources describe 2/3-methylbutanal as cocoa and roasted.
Which foods contain 2/3-methylbutanal?
We list 2 ingredients that contain 2/3-methylbutanal.
How strong is 2/3-methylbutanal?
Our working odour threshold for 2/3-methylbutanal is 164 ppb.
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Cite this analysis
Compound Kitchen (2026). 2/3-methylbutanal compound data sheet. https://compkitchen.com/compound/2/3-methylbutanal. Accessed 2026-11-03.
@misc{compkitchen_compound_2_3_methylbutanal_compound_data_sheet_2026,
title = {2/3-methylbutanal compound data sheet},
author = {{Compound Kitchen}},
year = {2026},
url = {https://compkitchen.com/compound/2/3-methylbutanal},
note = {Accessed: 2026-11-03}
}
Methodology DOI: 10.5281/zenodo.19719459 · CC BY 4.0 · Citations are a request, not a requirement.