gamma-undecalactone

dairy lactone Key food odorant

Found in 18 ingredients across the CompKitchen flavor graph.

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

2D Lewis Structure

Formula: C11H20O2
Molecular weight: 184.27 g/mol
PubChem CID: 7714 — full record on PubChem

Key food odorant (individualist)

Dunkel et al. 2014

Identified in the meta-analysis of 227 food samples as one of 151 individualist odorants — appears in <5% of foods, carries the diagnostic signature of specific ingredients.

Source: Angew. Chem. Int. Ed. 2014, 53, 7124–7143

Properties

Odor description: peach, sweet, fatty
Odor threshold — in a food matrix: 2.1 ppb 1 published value · see all 1 with sources
Volatility: medium
CAS number: 104-67-6

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

? Partial match

FEMA number: 3091
GRAS publication: GRAS 3
FEMA primary name: Y-UNDECALACTONE

Use-level matrix not extracted for this substance — check the source publication for current ppm guidance.

Source: FEMA GRAS publications 1-33.

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.

peach, sweet, fatty shown above Flavornet Cas, Flavornet Name, Flavordb Odor Column 3 sources agree

—

apricot, coconut, creamy, fatty, fruity, ketonic, lactonic, peach FlavorDB 2.0

fatty sweet aldehyde FlavorDB 2.0

Bars are the share of ingredient records carrying each description. High agreement means the sources replicate each other — not necessarily that they are right.

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.

In a food matrix

2.1 ppb

Measured in a real food, where the matrix shifts detection — not a clean-water value.

Threshold	Matrix	Source	Paper
2.1 ppb	water (food: reference standard (water))	Literature corpus	—

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 gamma-undecalactone. 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 gamma-undecalactone in it.

13 cmpds

33 cmpds

45 cmpds

52 cmpds