nonadecanoic acid

sour acid

Found in 33 ingredients across the CompKitchen flavor graph.

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

2D Lewis Structure

Formula: C19H38O2
Molecular weight: 298.5 g/mol
PubChem CID: 12591 — full record on PubChem

Properties

Odor description: fatty, waxy, mild
Odor threshold: 20000.0 ppb (1 source, non-SIDA)
Volatility: low
CAS number: 646-30-0

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.

How this molecule is described

Sources disagree about odour more often than they disagree about chemistry. Rather than show one answer, here is every description on file with how many ingredient records carry it.

Descriptions on file

Ordered by how many independent descriptor streams give each wording, then by how often it appears. The bar is still replication — one source copied onto many ingredients scores high there — so the two can disagree.

fatty FlavorDB 2.0, Flavordb Odor Column 2 sources agree

acrid, chemical, rose, fatty FlavorDB 2.0

fatty, waxy, mild shown above Llm Adjudicated

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chemical Flavordb Odor Column

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acrid Flavordb Odor Column

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rose, fatty, chemical Flavordb Odor Column

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Bars are the share of ingredient records carrying each description. High agreement means the sources replicate each other — not necessarily that they are right.

Where you'd actually smell it

Odor Activity Value = measured concentration ÷ odor threshold (20000.0 ppb). OAV ≥ 1 = perceptible.

Food	Concentration (ppb)	OAV	Source
olive	300000.0	15.0 ⚡	DOI

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 nonadecanoic acid. 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 nonadecanoic acid in it. Full concentrations are in the OAV table above.

169 cmpds

172 cmpds

174 cmpds

176 cmpds