cyclopentanone

fruity ketone

Found in 392 ingredients across the CompKitchen flavor graph.

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

2D Lewis Structure

Formula: C5H8O
Molecular weight: 84.12 g/mol
PubChem CID: 8452 — full record on PubChem

Properties

Odor description: minty
Odor threshold — in a food matrix: 25.4 ppb 1 published value · see all 2 with sources
Volatility: high
CAS number: 120-92-3
Retention index: 1183

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

✓ Exact match

FEMA number: 3910
GRAS publication: GRAS 19
FEMA primary name: CYCLOPENTANONE

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.

Also filed as

cyclopentanone-m

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

Published thresholds

2 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

25.4 ppb

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

Threshold	Matrix	Source	Paper
25.4 ppb	water (food: unknown)	Literature corpus	25482491

In air

31.0 ppb

Airborne detection — not comparable to a water threshold.

Threshold	Matrix	Source	Paper
31.0 ppb	air (food: reference standard (air))	Literature corpus	25482491

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 cyclopentanone. 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 cyclopentanone in it.

33 cmpds

83 cmpds

83 cmpds

84 cmpds