4-nonenal

green aldehyde

Found in 1 ingredient across the CompKitchen flavor graph.

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

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

~ Isomer match

FEMA number: 4302
GRAS publication: GRAS 23
FEMA primary name: trans-4-Nonenal

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)
beverages (alcoholic)	2	10
beverages (nonalcoholic)	1	10
chewing gum	5	15
condiments/ relishes	5	25
confectionery frostings	2	10
fruit ices	1	5
gelatins/ puddings	2	10
hard candy	2	10
instant coffee/tea	2	10
seasonings/ flavors	50	1000
snack foods	2	10
soft candy	2	10
sugar substitutes	10	25

Source: FEMA GRAS publications 1-33.

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?
ethanol solution	0.54 ppb	0.54–0.54	1	1	one paper
food matrix	2 ppb	2–2.2	4	3	yes
unstated	2.2 ppb	2–40	5	5	yes
water	40 ppb	40–40	1	1	one paper

Found in

Measured impact first, then profile share

Every ingredient known to contain 4-nonenal. 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 4-nonenal in it.

fish

158 cmpds

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