Aroma molecule · furan
5-methyl-2-furancarboxaldehyde
Smells ofcaramel, sweet, maple, almond
Found in 3 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
- 110.11 g/mol
- CAS
- 620-02-0
- PubChem
- —
- FEMA
- not listed
- Threshold
- 16,000 ppb
- Class
- furan
- Status
- Aroma-active
01How little it takes
- in waterpapers disagree 1,105
- in a foodpapers disagree 1,110
- in alcohol 241,160
- in wine/beerpapers disagree 20,000
- in oil 685
ppb, log scale · tick = median of published values, bar = full range, from open-access paper tables (not reviewed)
02Where it turns up
- Meat & fish1
- Drinks1
- Other1
of the 3 ingredients that contain it, by food group
03What it travels with
Too few ingredients to say what it travels with.
What does 5-methyl-2-furancarboxaldehyde smell like?
Sources describe it as caramel, sweet, maple, almond.
How this molecule is described
- caramel FlavorDB 2.0
- almond, caramel, burnt sugar, spice, maple, burntsugar FlavorDB 2.0
- caramel, sweet, maple, almond shown above Llm Adjudicated
Ordered by how many independent descriptor streams give each wording, then by how often it appears. The bar is replication (one source copied onto many ingredients scores high), not corroboration.
Which foods contain 5-methyl-2-furancarboxaldehyde?
We list 3 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 5-methyl-2-furancarboxaldehyde in it. ✓n = sources that recorded the link.
How strong is 5-methyl-2-furancarboxaldehyde?
Our working odour threshold is 16000.0 ppb, from 1 source (none by SIDA, so treat it as approximate).
Thresholds in published tables
| Medium | Median | Range | Values | Papers | Papers agree? |
|---|---|---|---|---|---|
| air | 1110 µg/L air | 500–1.11e+03 | 6 | 4 | yes |
| ethanol solution | 2.412e+05 ppb | 1.6e+04–4.66e+05 | 2 | 2 | yes |
| food matrix | 1110 ppb | 1.11–2e+07 | 11 | 11 | no (2.6 decades) |
| model wine or beer | 2e+04 ppb | 2e+04–2e+04 | 1 | 1 | one paper |
| oil | 685 ppb | 260–1.11e+03 | 2 | 2 | yes |
| unstated | 1000 ppb | 0.5–2.4e+06 | 35 | 33 | no (3.1 decades) |
| water | 1105 ppb | 0.005–6e+03 | 18 | 17 | no (2.6 decades) |
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.
- Retention index
- 963
Is 5-methyl-2-furancarboxaldehyde 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.
5-methyl-2-furancarboxaldehyde questions
What does 5-methyl-2-furancarboxaldehyde smell like?
Sources describe 5-methyl-2-furancarboxaldehyde as caramel, sweet, maple and almond.
Which foods contain 5-methyl-2-furancarboxaldehyde?
We list 3 ingredients that contain 5-methyl-2-furancarboxaldehyde.
How strong is 5-methyl-2-furancarboxaldehyde?
Our working odour threshold for 5-methyl-2-furancarboxaldehyde is 16,000 ppb.
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Cite this analysis
Compound Kitchen (2026). 5-methyl-2-furancarboxaldehyde compound data sheet. https://compkitchen.com/compound/5-methyl-2-furancarboxaldehyde. Accessed 2026-11-03.
@misc{compkitchen_compound_5_methyl_2_furancarboxaldehyde_compound_data_sheet_2026,
title = {5-methyl-2-furancarboxaldehyde compound data sheet},
author = {{Compound Kitchen}},
year = {2026},
url = {https://compkitchen.com/compound/5-methyl-2-furancarboxaldehyde},
note = {Accessed: 2026-11-03}
}
Methodology DOI: 10.5281/zenodo.19719459 · CC BY 4.0 · Citations are a request, not a requirement.