taurine
sulfurous sulfur compoundFound in 64 ingredients across the CompKitchen flavor graph.
Look up another compound — search by name, CAS number, PubChem CID, or FEMA #.
- Formula
- C2H7NO3S
- Molecular weight
- 125.15 g/mol
- PubChem CID
- 1123 — full record on PubChem
Properties
- Odor description
- bitter
- Odor threshold — in a food matrix
- 0.280 ppb – 1.6 ppb median 0.882 ppb · 3 published values · see all 3 with sources
- Volatility
- low
- CAS number
- 107-35-7
FEMA GRAS — Generally Recognized As Safe for flavoring use
- FEMA number
- 3813
- GRAS publication
- GRAS 17
- FEMA primary name
- Taurine
Use-level matrix not extracted for this substance — check the source publication for current ppm guidance.
Published thresholds
3 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
0.280 ppb – 1.6 ppbMeasured in a real food, where the matrix shifts detection — not a clean-water value.
| Threshold | Matrix | Source | Paper |
|---|---|---|---|
| 0.280 ppb | water (food: fish) | Literature corpus | 35545626 |
| 0.882 ppb SIDA | water (food: unknown) | Literature corpus | 19646413, 29686619, 32072297 +3 |
| 1.6 ppb | water (food: milk) | Literature corpus | 39133689 |
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 (0.882 ppb, the engine's canonical value — see the 3 published values). OAV ≥ 1 = perceptible.
| Food | Concentration (ppb) | OAV | Source |
|---|---|---|---|
| fermented goat milk | 5930.0 | 6723 ⚡ | — |
| fish | 0.3 | 0.33 | — |
| milk | 0.0 | 0.03 | — |
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 shareEvery ingredient known to contain taurine. 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 taurine in it. Full concentrations are in the OAV table above.
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