1-pyrroline

roasted pyrrole

Found in 382 ingredients across the CompKitchen flavor graph.

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

2D Lewis Structure

Formula: C4H7N
Molecular weight: 69.11 g/mol
PubChem CID: 79803 — full record on PubChem

Properties

Odor description: ammoniacal, shrimp
Odor threshold: 22.0 ppb (1 source, non-SIDA)
Volatility: high
CAS number: 5724-81-2

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

? Partial match

FEMA number: 4249
GRAS publication: GRAS 22
FEMA primary name: 2-Acetyl-1-pyrroline

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	2	10
breakfast cereal	0.2	1
cheese	0.4	2
condiments/ relishes	0.1	0.5
confectionery frostings	1	5
fats/oils	0.1	0.5
fish products	0.2	1
frozen dairy	0.4	2
fruit ices	0.4	2
meat products	0.2	1
milk products	0.4	2
other grains	0.2	1
poultry	0.2	1
processed fruits	0.4	2
seasonings/ flavors	0.1	0.5
snack foods	1	5
soups	0.1	0.5

Source: FEMA GRAS publications 1-33.

Found in

Measured impact first, then profile share

Every ingredient known to contain 1-pyrroline. 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 1-pyrroline in it.

54 cmpds

66 cmpds

83 cmpds

83 cmpds