pentan-2-one

fruity ketone

Found in 2 ingredients across the CompKitchen flavor graph.

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

Properties

Odor description: green, caramel, roasted, burnt, cooked
Odor threshold: 98.78 ppb
CAS number: 3194-17-0
Retention index: 1002

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.

Where you'd actually smell it

Odor Activity Value = measured concentration ÷ odor threshold (98.78 ppb). OAV ≥ 1 = perceptible.

Food	Concentration (ppb)	OAV	Source
fish oil	430000.0	4353 ⚡	—

Concentrations from PubMed Central Open Access papers (free literature corpus, MIT-style licensed). Copper = OAV ≥ 10 (strongly perceptible). Green = OAV ≥ 1 (perceptible).

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	4990 µg/L air	28–7e+04	5	2	no (3.4 decades)
food matrix	800 ppb	0.3–7e+04	19	18	no (4.5 decades)
oil	350 ppb	350–350	1	1	one paper
unstated	2090 ppb	1.38–1.94e+05	16	15	no (5.0 decades)
water	2150 ppb	1.38e+03–7.5e+04	7	6	yes

Found in

Measured impact first, then profile share

Every ingredient known to contain pentan-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 pentan-2-one in it. Full concentrations are in the OAV table above.

13 cmpds

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