apigenin

herbal phenol

Found in 413 ingredients across the CompKitchen flavor graph.

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

2D Lewis Structure

Formula: C15H10O5
Molecular weight: 270.24 g/mol
PubChem CID: 5280443 — full record on PubChem

Properties

Odor description: bitter
Odor threshold — in a food matrix: 5.3 ppb – 205 ppb median 117 ppb · 5 published values · see all 5 with sources
Volatility: low
CAS number: 520-36-5

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

5 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.

In a food matrix

5.3 ppb – 205 ppb

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

Threshold	Matrix	Source	Paper
0.060 ppb	water (food: beer)	Literature corpus	36496475
Flagged: 1950× from the median of this group. Excluded from the range above pending re-check against the source publication — shown rather than hidden.
5.3 ppb	water (food: tea)	Literature corpus	36540235, 41348501
117 ppb	water (food: unknown)	Literature corpus	37836723, 38316894, 39931095 +2
177 ppb	water (food: fish)	Literature corpus	40351771
205 ppb	water (food: lime)	Literature corpus	36496475, 36540235, 37836723 +6

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.

Where you'd actually smell it

Odor Activity Value = measured concentration ÷ odor threshold (117.0 ppb, the engine's canonical value — see the 5 published values). OAV ≥ 1 = perceptible.

Food	Concentration (ppb)	OAV	Source
cocoa	5000.0	42.7 ⚡	—
tea	143.4	1.23	—
lime	18.0	0.15	—
fish	10.0	0.09	—
beer	0.2	0.00	—

Concentrations from PubMed Central Open Access papers (free literature corpus, MIT-style licensed). Copper = OAV ≥ 10 (strongly perceptible). Green = OAV ≥ 1 (perceptible).

Found in

Measured impact first, then profile share

Every ingredient known to contain apigenin. 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 apigenin in it. Full concentrations are in the OAV table above.

484 cmpds

617 cmpds

301 cmpds

57 cmpds