Aroma molecule · oxygenated compound
6-methyl-3,5-heptadien-2-one
Smells ofcoconut, cinnamon, spice, woody, sweet
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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01How little it takes
- in water 100
- in a food 100
ppb, log scale · tick = median of published values, bar = full range, from open-access paper tables (not reviewed)
02Where it turns up
- Fruit1
- Vegetables1
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 6-methyl-3,5-heptadien-2-one smell like?
Sources describe it as coconut, cinnamon, spice, woody, sweet, weedy.
Which foods contain 6-methyl-3,5-heptadien-2-one?
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 6-methyl-3,5-heptadien-2-one in it. ✓n = sources that recorded the link.
How strong is 6-methyl-3,5-heptadien-2-one?
Orthonasal, in clean water: 380 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 |
|---|---|---|---|
| 380 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 | 3805 µg/L air | 3.8e+03–3.8e+03 | 1 | 1 | one paper |
| food matrix | 100 ppb | 100–100 | 2 | 2 | yes |
| unstated | 100 ppb | 68–550 | 4 | 4 | yes |
| water | 100 ppb | 68–3.8e+03 | 3 | 3 | 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.
- Volatility
- high
- Retention index
- 1106
Is 6-methyl-3,5-heptadien-2-one safe to eat?
6-methyl-3,5-heptadien-2-one is listed by FEMA as generally recognized as safe (GRAS) for use as a flavoring: FEMA number 3363, published in GRAS 6. Check current FDA and EFSA guidance for your market and use level.
- FEMA number
- 3363 ✓ exact match
- Publication
- GRAS 6
- FEMA name
- 6-METHYL-3,5-HEPTADIEN-2-ONE
Use-level matrix not extracted for this substance; check the source publication for current ppm guidance.
Source: FEMA GRAS publications 1–33.
6-methyl-3,5-heptadien-2-one questions
What does 6-methyl-3,5-heptadien-2-one smell like?
Sources describe 6-methyl-3,5-heptadien-2-one as coconut, cinnamon, spice, woody and sweet.
Which foods contain 6-methyl-3,5-heptadien-2-one?
We list 2 ingredients that contain 6-methyl-3,5-heptadien-2-one.
How strong is 6-methyl-3,5-heptadien-2-one?
The median of 1 published odour thresholds in water is 380 ppb.
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Cite this analysis
Compound Kitchen (2026). 6-methyl-3,5-heptadien-2-one compound data sheet. https://compkitchen.com/compound/6-methyl-3%2C5-heptadien-2-one. Accessed 2026-11-05.
@misc{compkitchen_compound_6_methyl_3_5_heptadien_2_one_compound_data_sheet_2026,
title = {6-methyl-3,5-heptadien-2-one compound data sheet},
author = {{Compound Kitchen}},
year = {2026},
url = {https://compkitchen.com/compound/6-methyl-3%2C5-heptadien-2-one},
note = {Accessed: 2026-11-05}
}
Methodology DOI: 10.5281/zenodo.19719459 · CC BY 4.0 · Citations are a request, not a requirement.