(z)-4-decenal

green aldehyde Key food odorant

Found in 8 ingredients across the CompKitchen flavor graph.

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

2D Lewis Structure

Formula: C10H18O
Molecular weight: 154.25 g/mol
PubChem CID: 5362620 — full record on PubChem

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.

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

Properties

Odor description: green, must
Odor threshold: 0.022 ppb
Volatility: medium
CAS number: 21662-09-9
Retention index: 1198

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.

How this molecule is described

Sources disagree about odour more often than they disagree about chemistry. Rather than show one answer, here is every description on file with how many ingredient records carry it.

Also filed as

cis-4-decenal

Same molecule, unified here — previously counted and displayed as separate compounds.

Thresholds in published tables

Numbers printed in open-access papers, grouped by the medium the table states. Median and full range of the values; “agree” means two or more papers whose middle 80% of values sit within 100×. Not reviewed.

Medium	Median	Range	Values	Papers	Papers agree?
air	0.004 µg/L air	0.004–0.004	1	1	one paper
unstated	0.04 ppb	0.04–0.04	1	1	one paper
water	0.022 ppb	0.004–0.04	2	2	yes

Found in

Measured impact first, then profile share

Every ingredient known to contain (z)-4-decenal. 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 (z)-4-decenal in it.

✓1 59 cmpds

✓1 91 cmpds

✓1 219 cmpds

221 cmpds