5-ethyloxolan-2-one

dairy lactone

Found in 1 ingredient across the CompKitchen flavor graph.

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

Not in FEMA GRAS publications 1-33. Of 3,367 listed flavoring substances, none match this compound name. May still be food-safe under other regulatory routes (FDA 21 CFR 172, EFSA, JECFA) — check femaflavor.org for the authoritative current list.

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	1.858e+05 ppb	1.25e+04–3.59e+05	2	2	yes
food matrix	260 ppb	50–3.59e+05	6	5	no (2.4 decades)
oil	8000 ppb	8e+03–8e+03	1	1	one paper
unstated	1600 ppb	0.26–5e+06	27	23	no (3.9 decades)
water	260 ppb	1.6–1.6e+03	12	11	no (2.3 decades)

Found in

Measured impact first, then profile share

Every ingredient known to contain 5-ethyloxolan-2-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 5-ethyloxolan-2-one in it.

jujube

fruit

255 cmpds

Into the chemistry?

Get a molecule-level pairing breakdown each week — which ingredients share a compound, and why it matters at the table. Free, no spam.

Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Try the pairing tools to see which ingredient combinations rely on 5-ethyloxolan-2-one, or compare two ingredients side-by-side.