n-decyl aldehyde

green aldehyde Key food odorant

Found in 1 ingredient across the CompKitchen flavor graph.

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

Key food odorant (individualist)

Dunkel et al. 2014

Identified in the meta-analysis of 227 food samples as one of 151 individualist odorants — appears in <5% of foods, carries the diagnostic signature of specific ingredients. Characteristic odor: citrus, soapy.

Source: Angew. Chem. Int. Ed. 2014, 53, 7124–7143

Properties

Odor threshold — orthonasal, in clean water: 0.900 ppb – 1.1 ppb median 0.975 ppb · 2 published values · see all 27 with sources
CAS number: 112-31-2

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

27 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.

Orthonasal, in clean water

0.900 ppb – 1.1 ppb

The reference measurement — smelled in water. OAV is computed against this.

Threshold	Matrix	Source	Paper
0.900 ppb SIDA	water	Rychlik 1998 · 5 studies	—
1.1 ppb	water_odor	Leffingwell	—

In a food matrix

0.100 ppb – 80.0 ppb

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

Threshold	Matrix	Source	Paper
0.100 ppb	water (food: hand-squeezed grapefruit juice)	Literature corpus	—
0.100 ppb	water (food: goat milk)	Literature corpus	—
0.190 ppb	water (food: lemon)	Literature corpus	—
0.550 ppb	water (food: lime)	Literature corpus	—
0.790 ppb	water (food: melon)	Literature corpus	—
1.2 ppb	water (food: apple)	Literature corpus	—
1.2 ppb	water (food: rice)	Literature corpus	—
1.4 ppb	water (food: chocolate)	Literature corpus	—
2.2 ppb	water (food: orange)	Literature corpus	—
3.0 ppb	water (food: orange juice (reconstituted from concentrate))	Literature corpus	—
3.3 ppb	water (food: grape)	Literature corpus	—
6.0 ppb	water (food: fish)	Literature corpus	—
11.5 ppb	water (food: milk)	Literature corpus	—
40.0 ppb	water (food: unknown)	Literature corpus	—
57.0 ppb	water (food: honey)	Literature corpus	—
80.0 ppb	water (food: soy sauce)	Literature corpus	—
609 ppb	water (food: tea)	Literature corpus	—
Flagged: 185× from the median of this group. Excluded from the range above pending re-check against the source publication — shown rather than hidden.
610 ppb	water (food: ginger)	Literature corpus	—
Flagged: 185× from the median of this group. Excluded from the range above pending re-check against the source publication — shown rather than hidden.
1186 ppb	water (food: tomato)	Literature corpus	—
Flagged: 359× from the median of this group. Excluded from the range above pending re-check against the source publication — shown rather than hidden.
1205 ppb	water (food: bread)	Literature corpus	—
Flagged: 365× from the median of this group. Excluded from the range above pending re-check against the source publication — shown rather than hidden.
1207 ppb	water (food: beef)	Literature corpus	—
Flagged: 366× from the median of this group. Excluded from the range above pending re-check against the source publication — shown rather than hidden.

Retronasal / in-mouth

7.0 ppb – 850 ppb

Tasted rather than smelled — a different sense, not comparable.

Threshold	Matrix	Source	Paper
7.0 ppb	water_flavor	Leffingwell	—
850 ppb SIDA	oil_retronasal	Rychlik 1998 · 1 studies	—

In air

0.400 ppb

Airborne detection — not comparable to a water threshold.

Threshold	Matrix	Source	Paper
0.400 ppb	air	Nagata 2003	—

Other matrix

6700 ppb

Measured in a non-aqueous medium (oil, starch, cellulose).

Threshold	Matrix	Source	Paper
6700 ppb SIDA	oil_orthonasal	Rychlik 1998 · 1 studies	—

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 n-decyl aldehyde. 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 n-decyl aldehyde in it.

corn

maize

448 cmpds

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