2-Oxobutyric acid
Synonym(s):α-Ketobutyric acid;2-Ketobutyric acid;2-Oxobutanoic acid;2-Oxobutyric acid;Propionylformic acid
- CAS NO.：600-18-0
- Empirical Formula: C4H6O3
- Molecular Weight: 102.09
- MDL number: MFCD00004164
- EINECS: 209-986-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-03-13 23:13:44
What is 2-Oxobutyric acid?
Chemical properties
COLOURLESS TO ALMOST COLOURLESS CRYSTALS
Chemical properties
2-Oxobutyric acid has a sweet, brown, caramel, creamy odor.
Occurrence
Reported found in beer and black tea.
The Uses of 2-Oxobutyric acid
2-Oxobutyric acid (α-ketobutyric acid) may be used as an analytical reference standard for the determination of the analyte in K562 cells by high-performance liquid chromatography with fluorescence detection and in drinking water at low microgram per liter concentrations by ion chromatography technique.
The Uses of 2-Oxobutyric acid
A substrate for the determination of lactate dehydrogenase isoenzymes.This compound is suitable for lactate dehydrogenase (LDH) related research.
What are the applications of Application
2-Ketobutyric acid is A important member of amino acid metabolism
Definition
ChEBI: A 2-oxo monocarboxylic acid that is the 2-oxo derivative of butanoic acid.
Taste threshold values
Taste characteristics at 25 ppm: sweet, brown, creamy, caramellic with a fatty nuance.
General Description
2-Oxobutyric acid is mainly found in the hydrolysates of proteins, reportedly being formed by the degradation of threonine.
Properties of 2-Oxobutyric acid
| Melting point: | 30-34 °C(lit.) |
| Boiling point: | 84 °C20 mm Hg(lit.) |
| Density | 1.2000 |
| refractive index | 1.3972 (estimate) |
| FEMA | 3723 | 2-OXOBUTYRIC ACID |
| Flash point: | 179 °F |
| storage temp. | Store at +2°C to +8°C. |
| solubility | H2O: soluble0.1g/mL, clear |
| form | liquid |
| pka | 2.5(at 25℃) |
| Specific Gravity | 1.3972 (20/4℃) |
| color | White to Almost white |
| PH | 3.11(1 mM solution);2.38(10 mM solution);1.79(100 mM solution); |
| Odor | at 1.00 % in propylene glycol. sweet brown caramel creamy lactonic |
| JECFA Number | 589 |
| BRN | 1700514 |
| CAS DataBase Reference | 600-18-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Butanoic acid, 2-oxo-(600-18-0) |
| EPA Substance Registry System | 2-Oxobutyric acid (600-18-0) |
Safety information for 2-Oxobutyric acid
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P363:Wash contaminated clothing before reuse. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2-Oxobutyric acid
| InChIKey | TYEYBOSBBBHJIV-UHFFFAOYSA-N |
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