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K401

Sigma-Aldrich

2-Ketobutyric acid

97%

Synonym(s):

2-Oxobutanoic acid, 2-Oxobutyric acid, α-Ketobutyric acid, Propionylformic acid

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About This Item

Linear Formula:
CH3CH2COCOOH
CAS Number:
600-18-0
Molecular Weight:
102.09
Beilstein:
1700514
EC Number:
209-986-9
MDL number:
MFCD00004164
UNSPSC Code:
12352100
PubChem Substance ID:
24896237
NACRES:
NA.22

Assay

97%

form

liquid

bp

84 °C/20 mmHg (lit.)

mp

30-34 °C (lit.)

storage temp.

2-8°C

SMILES string

CCC(=O)C(O)=O

InChI

1S/C4H6O3/c1-2-3(5)4(6)7/h2H2,1H3,(H,6,7)

InChI key

TYEYBOSBBBHJIV-UHFFFAOYSA-N

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Application

2-Ketobutyric acid can be used as a reactant to synthesize:
  • (S)-2-Aminobutyric acid via enzyme-catalyzed amination reaction.
  • L-Isoleucine by living cell reaction in the presence of ethanol.
  • 3-Ethyl-2-quinoxalinol from 1,2-diaminobenzene in the presence of sulfuric acid.
  • 3-Ethylbenzo[g]quinoxalin-2(1H)-one using 2,3-diaminonaphthalene in the presence of biocatalyst.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

179.6 °F - closed cup

Flash Point(C)

82 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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