thujone

herbal terpenoid

Found in 7 ingredients across the CompKitchen flavor graph.

Look up another compound — search by name, CAS number, PubChem CID, or FEMA #.

2D Lewis Structure

Formula: C10H16O
Molecular weight: 152.23 g/mol
PubChem CID: 261491 — full record on PubChem

Properties

Odor threshold — in a food matrix: 0.250 ppb – 74.0 ppb median 1.5 ppb · 5 published values · see all 5 with sources
Volatility: medium
CAS number: 546-80-5
Retention index: 1105

Not in FEMA GRAS publications 1-33. Of 3,367 listed flavoring substances, none match this compound name. May still be food-safe under other regulatory routes (FDA 21 CFR 172, EFSA, JECFA) — check femaflavor.org for the authoritative current list.

Published thresholds

5 measured values from the literature. Grouped by what was actually measured — a threshold smelled in clean water, tasted in the mouth, or measured in a real food are three different quantities and are not pooled.

In a food matrix

0.250 ppb – 74.0 ppb

Measured in a real food, where the matrix shifts detection — not a clean-water value.

Threshold	Matrix	Source	Paper
0.250 ppb	water (food: tea)	Literature corpus	—
0.970 ppb	water (food: milk)	Literature corpus	—
1.5 ppb	water (food: unknown)	Literature corpus	—
9.8 ppb	water (food: tomato)	Literature corpus	—
74.0 ppb	water (food: mango)	Literature corpus	—

Only values we can attribute are listed. Where a compendium's licence does not permit public attribution its figures are omitted here, so every number on this page traces to a citable source.

Found in

Measured impact first, then profile share

Every ingredient known to contain thujone. Ingredients with a measured concentration come first, ranked by odour activity; the rest follow by how large a share of that ingredient's profile this molecule is. The figure beside each is how many different compounds that ingredient has in total — not the concentration of thujone in it.

41 cmpds

158 cmpds

167 cmpds

212 cmpds