3-methyl-1,2-cyclopentanedione

fruity oxygenated compound

Found in 3 ingredients across the CompKitchen flavor graph.

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

2D Lewis Structure

Formula: C6H8O2
Molecular weight: 112.13 g/mol
PubChem CID: 61209 — full record on PubChem

Properties

Odor description: sweet, caramel, maple, sugar, coffee, woody
Odor threshold — orthonasal, in clean water: 300 ppb 1 published value · see all 3 with sources
Volatility: high
CAS number: 765-70-8

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

3 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

300 ppb

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

Threshold	Matrix	Source	Paper
300 ppb	water_odor	Leffingwell	—

In a food matrix

300 ppb – 917 ppb

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

Threshold	Matrix	Source	Paper
300 ppb	water (food: unknown)	Literature corpus	29983741, 41762561
917 ppb	water (food: wine)	Literature corpus	29983741, 41762561

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 3-methyl-1,2-cyclopentanedione. 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 3-methyl-1,2-cyclopentanedione in it.

265 cmpds

344 cmpds

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