tartaric acid

sour acid

Found in 41 ingredients across the CompKitchen flavor graph.

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

2D Lewis Structure

Formula: C4H6O6
Molecular weight: 150.09 g/mol
PubChem CID: 875 — full record on PubChem

Properties

Odor description: tart acidic
Volatility: medium
CAS number: 526-83-0

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

~ Likely match

FEMA number: 3044
GRAS publication: GRAS 3
FEMA primary name: TARTARIC ACID (d-, 1-, dl-, meso-)

Use-level matrix not extracted for this substance — check the source publication for current ppm guidance.

Source: FEMA GRAS publications 1-33. 1 related FEMA record for this name — verify the exact substance for regulatory use.

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.

odorless FlavorDB 2.0, Flavordb Odor Column 2 sources agree

tart acidic shown above FlavorDB 2.0

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

Found in

Measured impact first, then profile share

Every ingredient known to contain tartaric 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 tartaric acid in it.

85 cmpds

144 cmpds

164 cmpds

169 cmpds