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Key Documents

00878

Sigma-Aldrich

(±)-2-Acetoxypropionic acid

≥97.0% (GC)

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About This Item

Linear Formula:
CH3COOCH(CH3)COOH
CAS Number:
Molecular Weight:
132.11
Beilstein:
1722938
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

≥97.0% (GC)

refractive index

n20/D 1.423

density

1.176 g/mL at 20 °C (lit.)

functional group

carboxylic acid
ester

SMILES string

CC(OC(C)=O)C(O)=O

InChI

1S/C5H8O4/c1-3(5(7)8)9-4(2)6/h3H,1-2H3,(H,7,8)

InChI key

WTLNOANVTIKPEE-UHFFFAOYSA-N

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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N Goupil-Feuillerat et al.
Journal of bacteriology, 179(20), 6285-6293 (1997-10-23)
The alpha-acetolactate decarboxylase gene aldB is clustered with the genes for the branched-chain amino acids (BCAA) in Lactococcus lactis subsp. lactis. It can be transcribed with BCAA genes under isoleucine regulation or independently of BCAA synthesis under the control of
C T Duong et al.
Metabolic engineering, 13(6), 638-647 (2011-08-10)
Diacetyl causes an unwanted buttery off-flavor in lager beer. It is spontaneously generated from α-acetolactate, an intermediate of yeast's valine biosynthesis released during the main beer fermentation. Green lager beer has to undergo a maturation process lasting two to three
S R Swindell et al.
Applied and environmental microbiology, 62(7), 2641-2643 (1996-07-01)
Diacetyl is an important food flavor compound produced by certain strains of citrate-metabolizing lactic acid bacteria. Citrate is converted to pyruvate, from which diacetyl is produced via intermediate alpha-acetolactate. This paper reports the cloning and analysis of the gene (aldB)
E A Sergienko et al.
Biochemistry, 40(25), 7369-7381 (2001-06-20)
Yeast pyruvate decarboxylase (YPDC), in addition to forming its metabolic product acetaldehyde, can also carry out carboligase reactions in which the central enamine intermediate reacts with acetaldehyde or pyruvate (instead of the usual proton electrophile), resulting in the formation of
C Monnet et al.
Applied and environmental microbiology, 66(12), 5518-5520 (2000-12-01)
Lactococcus lactis subsp. lactis biovar diacetylactis strains are utilized in several industrial processes for producing the flavoring compound diacetyl or its precursor alpha-acetolactate. Using random mutagenesis with nitrosoguanidine, we selected mutants that were deficient in alpha-acetolactate decarboxylase and had low

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