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Safety Information

A17951

Sigma-Aldrich

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
Beilstein:
385636
EC Number:
208-174-1
MDL number:
MFCD00004521
UNSPSC Code:
12352100
PubChem Substance ID:
24890588
NACRES:
NA.22

Quality Level

100

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

SMILES string

CC(O)C(C)=O

InChI

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

InChI key

ROWKJAVDOGWPAT-UHFFFAOYSA-N

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Pictograms

FlameCorrosion
GHS02,GHS05

Signal Word

Danger

Hazard Statements

H226,H318

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

118.4 °F - closed cup

Flash Point(C)

48 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 2 petroleums
Hazardous rank III
Water soluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

A17951-50G:
A17951-1KG:
A17951-250G:
A17951-VAR:
A17951-BULK:

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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
Pieter Moons et al.
Applied and environmental microbiology, 77(10), 3422-3427 (2011-03-29)
During fermentation of sugars, a number of bacterial species are able to switch from mixed acid production to acetoin and 2,3-butanediol production in order to avoid lethal acidification of their environment, although the regulation of this switch is only poorly
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.
Jian-An Sun et al.
Bioresource technology, 119, 94-98 (2012-06-26)
Cofactor engineering was employed to enhance production of acetoin by Serratia marcescens H32. 2,3-Butanediol was a major byproduct of acetoin fermentation by S. marcescens H32. In order to decrease 2,3-butanediol formation and achieve a high efficiency of acetoin production, nox
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