dihydro-5-pentyl-2(3h)-furanone

dairy lactone Key food odorant

Found in 2 ingredients across the CompKitchen flavor graph.

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

Key food odorant (intermediary)

Dunkel et al. 2014

Identified in the meta-analysis of 227 food samples as one of 57 intermediary odorants — appears in 5–25% of foods.

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

Properties

Odor description: milky
Odor threshold — orthonasal, in clean water: 21.0 ppb – 47.5 ppb median 34.2 ppb · 2 published values · see all 11 with sources
CAS number: 104-61-0

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.

Published thresholds

11 measured values 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

21.0 ppb – 47.5 ppb

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

Threshold	Matrix	Source	Paper
21.0 ppb	water/ethanol 6:4 (food: american bourbon whisky)	Literature corpus	—
47.5 ppb SIDA	water	Rychlik 1998 · 1 studies	—

In a food matrix

0.270 ppb – 102 ppb

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

Threshold	Matrix	Source	Paper
0.270 ppb	water (food: longjing green tea infusion)	Literature corpus	—
9.7 ppb	water (food: reference standard (water))	Literature corpus	—
24.0 ppb	water (food: chocolate)	Literature corpus	—
27.0 ppb	water (food: beef vegetable gravy)	Literature corpus	—
27.0 ppb	water (food: pork vegetable gravy)	Literature corpus	—
102 ppb	water (food: unknown)	Literature corpus	—

Retronasal / in-mouth

219 ppb

Tasted rather than smelled — a different sense, not comparable.

Threshold	Matrix	Source	Paper
219 ppb SIDA	oil_retronasal	Rychlik 1998 · 1 studies	—

Other matrix

42.0 ppb – 148 ppb

Measured in a non-aqueous medium (oil, starch, cellulose).

Threshold	Matrix	Source	Paper
42.0 ppb	wine matrix (12% ethanol) (food: red wine)	Literature corpus	—
148 ppb SIDA	oil_orthonasal	Rychlik 1998 · 1 studies	—

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 dihydro-5-pentyl-2(3h)-furanone. 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 dihydro-5-pentyl-2(3h)-furanone in it.

209 cmpds

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