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3-nonen-2-one

fruity ketone

Found in 5 ingredients across the CompKitchen flavor graph.

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

2D Lewis structure of 3-nonen-2-one
2D Lewis Structure
Formula
C9H16O
Molecular weight
140.22 g/mol
PubChem CID
5317045 — full record on PubChem

Properties

Odor description
Oily, fermented, blue cheese, waxy
Odor threshold
800.0 ppb (1 source, non-SIDA)
Volatility
high
CAS number
14309-57-0
Retention index
1119
Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

✓ Exact match
FEMA number
3955
GRAS publication
GRAS 19
FEMA primary name
3-NONEN-2-ONE

Use-level matrix not extracted for this substance — check the source publication for current ppm guidance.

Source: FEMA GRAS publications 1-33.

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.

Descriptions on file

Ordered by how many independent descriptor streams give each wording, then by how often it appears. The bar is still replication — one source copied onto many ingredients scores high there — so the two can disagree.

fruity berry fatty oily ketonic weedy spicy licorice FlavorDB 2.0, Flavordb Odor Column 2 sources agree
1
Oily, fermented, blue cheese, waxy shown above FlavorDB 2.0
2
grassy FlavorDB 2.0
2

Bars are the share of ingredient records carrying each description. High agreement means the sources replicate each other — not necessarily that they are right.

Found in

Measured impact first, then profile share

Every ingredient known to contain 3-nonen-2-one. 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 3-nonen-2-one in it.

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