2-pentanone, 4-hydroxy-4-methyl

fruity ketone

Found in 1 ingredient across the CompKitchen flavor graph.

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

Properties

Retention index: 832

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?
air	5.527e+04 µg/L air	4.41e+04–6.64e+04	2	1	one paper
unstated	8e+07 ppb	500–1.6e+08	2	2	no (5.5 decades)
water	280 ppb	270–1e+05	4	4	no (2.6 decades)

Found in

Measured impact first, then profile share

Every ingredient known to contain 2-pentanone, 4-hydroxy-4-methyl. 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 2-pentanone, 4-hydroxy-4-methyl in it.

lemon

fruit citrus

365 cmpds

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