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Merck

A17951

Acetoin

May exist as crystalline dimer

Synonym(s):

3-Hydroxy-2-butanone, Acetylmethylcarbinol

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About This Item

Linear Formula:
CH3COCH(OH)CH3
CAS Number:
513-86-0
Molecular Weight:
88.11
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24890588
EC Number:
208-174-1
Beilstein/REAXYS Number:
385636
MDL number:
MFCD00004521
Assay:
≥98.0% (GC)
Form:
crystals

Key Documents

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Product Name

Acetoin, May exist as crystalline dimer

InChI key

ROWKJAVDOGWPAT-UHFFFAOYSA-N

InChI

1S/C4H8O2/c1-3(5)4(2)6/h3,5H,1-2H3

SMILES string

CC(O)C(C)=O

assay

≥98.0% (GC)

form

crystals

refractive index

n20/D 1.417 (lit.)

bp

148 °C (lit.)

mp

15 °C (monomer)
90 °C (dimer) (lit.)

density

1.013 g/mL at 25 °C (lit.)

food allergen

no known allergens

storage temp.

2-8°C

Quality Level

100

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Related Categories

pictograms

FlameCorrosion
GHS02,GHS05

signalword

Danger

hcodes

H226,H318

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 3

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

118.4 °F - closed cup

flash_point_c

48 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCR1853
MKCN0360
MKCM4410
MKCM3039
MKCM1015

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Zhen Liu et al.
Bioresource technology, 102(22), 10741-10744 (2011-09-29)
Production of highly pure (2S,3S)-2,3-butanediol ((2S,3S)-2,3-BD) and (3S)-acetoin ((3S)-AC) in high concentrations is desirable but difficult to achieve. In the present study, glucose was first transformed to a mixture of (2S,3S)-2,3-BD and meso-2,3-BD by resting cells of Klebsiella pneumoniae CICC
Maria del Pilar Marquez-Villavicencio et al.
PloS one, 6(8), e22974-e22974 (2011-08-31)
Pectobacterium species are necrotrophic bacterial pathogens that cause soft rot diseases in potatoes and several other crops worldwide. Gene expression data identified Pectobacterium carotovorum subsp. carotovorum budB, which encodes the α-acetolactate synthase enzyme in the 2,3-butanediol pathway, as more highly
M Otsuka et al.
Journal of chromatography, 577(2), 215-220 (1992-06-10)
Acetoin was quantitatively oxidized into diacetyl by Fe3+ in 1 M perchloric acid. The reaction of diacetyl with 4,5-dichloro-1,2-diaminobenzene afforded 6,7-dichloro-2,3-dimethylquinoxaline (DCDMQ), which was extracted by benzene containing aldrin (25 ng/ml) as an internal standard, and determined by gas chromatography
Ranjita Biswas et al.
Applied microbiology and biotechnology, 94(3), 651-658 (2012-03-01)
Production of 2,3-butanediol by Bacillus subtilis takes place in late-log or stationary phase, depending on the expression of bdhA gene encoding acetoin reductase, which converts acetoin to 2,3-butanediol. The present work focuses on the development of a strain of B.
Zijun Xiao et al.
Critical reviews in microbiology, 33(2), 127-140 (2007-06-15)
Acetoin is an important physiological metabolite excreted by many microorganisms. The excretion of acetoin, which can be diagnosed by the Voges Proskauer test and serves as a microbial classification marker, has its vital physiological meanings to these microbes mainly including
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