| FEMA | 3723 |
| CAS | 600-18-0 |
| EINECS | 209-986-9 |
| JECFA Food Flavoring | 589 |
| CoE Number | N/A |
| Organoleptic Notes |
|
| Odor | caramellic sweet, brown, caramellic, creamy, lactonic |
| Flavor | brown sweet, brown, creamy, caramellic, fatty, |
| Material Notes | Flavour ingredient 2-Ketobutyric acid is a substance that is involved in the metabolism of many amino acids (glycine, methionine, valine, leucine, serine, threonine, isoleucine) as well as propanoate metabolism and C-5 branched dibasic acid metabolism. More specifically, alpha-ketobutyric acid is a product of the lysis of cystathionine. It is also one of the degradation products of threonine. It can be converted to propionyl-CoA (and subsequently methylmalonyl CoA, which can be converted to succinyl CoA, a citric acid cycle intermediate), and thus enter the citric acid cycle.; Alpha-ketobutyric acid is a product of the lysis of cystathionine.; It is also one of the degradation products of threonine. |