heptenal

green aldehyde

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: fishy aroma
Odor threshold — orthonasal, in clean water: 10.0 ppb 1 published value · see all 1 with sources
CAS number: 929-22-6
Retention index: 947

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

? Partial match

FEMA number: 4382
GRAS publication: GRAS 23
FEMA primary name: 2,6-Dimethyl-5-heptenal propyleneglycol acetal

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	0.2	1
beverages (nonalcoholic)	5	25
chewing gum	40	200
fats/oils	0.5	2
fruit ices	6	30
hard candy	20	100
soft candy	20	100

Source: FEMA GRAS publications 1-33. 4 related FEMA records for this name — verify the exact substance for regulatory use.

Published thresholds

1 measured value 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

10.0 ppb

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

Threshold	Matrix	Source	Paper
10.0 ppb	water_odor	Leffingwell	—

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 heptenal. 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 heptenal in it.

265 cmpds

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Try the pairing tools to see which ingredient combinations rely on heptenal, or compare two ingredients side-by-side.