2-cyclopenten-1-one, 3-methyl-2-(2-pentenyl)-, (z)-

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

Odor threshold: 1.9 ppb
CAS number: 488-10-8

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.

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	1.9 µg/L air	0.26–7	5	5	yes
food matrix	7 ppb	7–7	2	2	yes
unstated	1.9 ppb	0.007–400	28	26	yes
water	1.9 ppb	0.26–2.16e+04	29	29	yes

Found in

Measured impact first, then profile share

Every ingredient known to contain 2-cyclopenten-1-one, 3-methyl-2-(2-pentenyl)-, (z)-. 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-cyclopenten-1-one, 3-methyl-2-(2-pentenyl)-, (z)- in it.

black tea

beverage caffeinated

586 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 2-cyclopenten-1-one, 3-methyl-2-(2-pentenyl)-, (z)-, or compare two ingredients side-by-side.