2-propanone

fruity ketone

Found in 7 ingredients across the CompKitchen flavor graph.

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

Properties

Odor threshold — orthonasal, in clean water: 500000 ppb 1 published value · see all 4 with sources
CAS number: 67-64-1
Retention index: 773

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

? Partial match

FEMA number: 4696
GRAS publication: GRAS 25
FEMA primary name: 1-(METHYLDITHIO)-2-PROPANONE

Reported use levels (ppm by food category)

Typical vs maximum reported addition levels in finished food. Use as a regulatory ceiling reference — verify against the current GRAS publication for your product category.

Food category	Typical (ppm)	Maximum (ppm)
baked goods	0.5	1
condiments/ relishes	0.5	1
gravies	0.5	1
meat products	0.5	1
poultry	0.5	1
processed vegetables	0.5	1
seasonings/ flavors	0.5	1
snack foods	0.5	1
soups	0.5	1

Source: FEMA GRAS publications 1-33. 5 related FEMA records for this name — verify the exact substance for regulatory use.

Published thresholds

4 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

500000 ppb

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

Threshold	Matrix	Source	Paper
500000 ppb	water_odor	Leffingwell	—

Retronasal / in-mouth

450000 ppb

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

Threshold	Matrix	Source	Paper
450000 ppb	water_flavor	Leffingwell	—

In air

42000 ppb

Airborne detection — not comparable to a water threshold.

Threshold	Matrix	Source	Paper
42000 ppb	air	Nagata 2003	—
42000 ppb	air (food: reference standard (air))	Literature corpus	24053239, 24239523, 24594176 +25

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 2-propanone. 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 2-propanone in it.

265 cmpds

295 cmpds

344 cmpds

385 cmpds