Aroma molecule · pyrazine
3-ethyl-2-methoxypyrazine
Smells ofraw, potato, earthy, bell, pepper
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.
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- Formula
- —
- Mass
- 138.17 g/mol
- CAS
- 25680-58-4
- PubChem
- —
- FEMA
- not listed
- Threshold · water
- 0.412 ppb
- Class
- pyrazine
- Status
- Aroma-active
01How little it takes
- in water 0.41
ppb, log scale · tick = median of published values, bar = full range
02Where it turns up
- Fruit1
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-ethyl-2-methoxypyrazine smell like?
Sources describe it as raw, potato, earthy, bell, pepper, nutty.
Which foods contain 3-ethyl-2-methoxypyrazine?
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-ethyl-2-methoxypyrazine in it. ✓n = sources that recorded the link.
How strong is 3-ethyl-2-methoxypyrazine?
Orthonasal, in clean water: 0.412 ppb, from 1 published value.
Published thresholds
1 measured value from the literature, grouped by what was measured: a threshold smelled in clean water, tasted, or measured in a real food are different quantities and are not pooled.
| Threshold | Matrix | Source | Paper |
|---|---|---|---|
| 0.412 ppb | water_odor | Leffingwell | — |
Only values we can attribute are listed. Where a compendium’s licence does not permit public attribution its figures are omitted, so every number here traces to a citable source.
Thresholds in published tables
| Medium | Median | Range | Values | Papers | Papers agree? |
|---|---|---|---|---|---|
| air | 0.4 µg/L air | 0.4–0.4 | 1 | 1 | one paper |
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-ethyl-2-methoxypyrazine 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-ethyl-2-methoxypyrazine questions
What does 3-ethyl-2-methoxypyrazine smell like?
Sources describe 3-ethyl-2-methoxypyrazine as raw, potato, earthy, bell and pepper.
Which foods contain 3-ethyl-2-methoxypyrazine?
We list 1 ingredient that contain 3-ethyl-2-methoxypyrazine.
How strong is 3-ethyl-2-methoxypyrazine?
The median of 1 published odour thresholds in water is 0.412 ppb.
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Cite this analysis
Compound Kitchen (2026). 3-ethyl-2-methoxypyrazine compound data sheet. https://compkitchen.com/compound/3-ethyl-2-methoxypyrazine. Accessed 2026-11-03.
@misc{compkitchen_compound_3_ethyl_2_methoxypyrazine_compound_data_sheet_2026,
title = {3-ethyl-2-methoxypyrazine compound data sheet},
author = {{Compound Kitchen}},
year = {2026},
url = {https://compkitchen.com/compound/3-ethyl-2-methoxypyrazine},
note = {Accessed: 2026-11-03}
}
Methodology DOI: 10.5281/zenodo.19719459 · CC BY 4.0 · Citations are a request, not a requirement.