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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
Recommended Products
Quality Level
Assay
≥97.0% (GC)
refractive index
n20/D 1.423
density
1.176 g/mL at 20 °C (lit.)
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
Signal Word
Warning
Hazard Statements
Precautionary 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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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
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
H S Park et al.
Biochimica et biophysica acta, 1245(3), 366-370 (1995-12-14)
Acetolactate nonenzymatically reduced flavins, quinones and nicotinamide coenzymes in a time-dependent manner at physiological pH and moderate temperature. In the presence of excess acetolactate, the reduction of FAD and NAD+ followed pseudo-first-order kinetics. The rate of reduction was proportional to
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
Ken Kobayashi et al.
Journal of bioscience and bioengineering, 99(5), 502-507 (2005-10-20)
A simultaneous assay method for diacetyl and acetoin was developed to investigate the formation of diacetyl during the brewing of alcoholic beverages. A GC-MS analysis after the extraction from neutralized sample by ethyl acetate gave accurate assay results. The detection
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