caftaric acid

sour acid

Found in 5 ingredients across the CompKitchen flavor graph.

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

2D Lewis Structure

Formula: C13H12O9
Molecular weight: 312.23 g/mol
PubChem CID: 6440397 — full record on PubChem

Properties

Odor description: odorless
Odor threshold: 500000.0 ppb (1 source, non-SIDA)
Volatility: low
CAS number: 67879-58-7

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.

Where you'd actually smell it

Odor Activity Value = measured concentration ÷ odor threshold (500000.0 ppb). OAV ≥ 1 = perceptible.

Food	Concentration (ppb)	OAV	Source
merlot wine	46680.0	0.09	Corpus paper
wine	8810.0	0.02	Corpus paper

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

565 cmpds

146 cmpds

220 cmpds

256 cmpds