en-1-one

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: fruity, floral, ethereal, green

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

? Partial match

FEMA number: 4867
GRAS publication: GRAS 28
CAS number: 18374-76-0
FEMA primary name: (3S,5R,8S)-3,8-Dimethyl-5-prop-1-en-2-yl-3,4,5,6,7,8-hexahydro-2H-azulen-1-one

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	0.001	0.02
beverages, alcoholic	0.0001	0.005
beverages, non-alcoholic	0.0001	0.005
beverages, nonalcoholic	0.0001	0.005
chewing gum	0.001	0.02
confections and frostings	0.0003	0.005
egg products	0.0003	0.005
fats and oils	0.02	0.2
fish products	0.0003	0.005
frozen dairy	0.0002	0.003
fruit ices	0.0002	0.003
gelatins and puddings	0.0003	0.002
gravies	0.001	0.01
hard candy	0.001	0.01
imitation dairy	0.001	0.01
instant coffee and tea	0.0001	0.001
milk products	0.001	0.01
nut products	0.001	0.01
seasonings and flavors	0.1	1
snack foods	0.001	0.01
soft candy	0.001	0.01
soups	0.0001	0.002
sweet sauces	0.001	0.01

Source: FEMA GRAS publications 1-33. 7 related FEMA records for this name — verify the exact substance for regulatory use.

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.

pine FlavorDB 2.0, Flavordb Odor Column 2 sources agree

caramel, pepper, clove, fermented FlavorDB 2.0

fruity, floral, ethereal, green shown above Llm Adjudicated

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caramel, pepper Flavordb Odor Column

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clove Flavordb Odor Column

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fermented Flavordb Odor Column

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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 en-1-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 en-1-one in it.

407 cmpds

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