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Merck
CN

W200816

Acetoin

≥96%, natural

Synonym(s):

3-Hydroxy-2-butanone, Acetylmethylcarbinol

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About This Item

Linear Formula:
CH3COCH(OH)CH3
CAS Number:
Molecular Weight:
88.11
PubChem Substance ID:
UNSPSC Code:
12164502
Council of Europe no.:
749c
FEMA Number:
2008
Flavis number:
7.051
EC Number:
208-174-1
MDL number:
Beilstein/REAXYS Number:
385636
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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

grade

Kosher, natural

assay

≥96%

refractive index

n20/D 1.417 (lit.)

bp

148 °C (lit.)

mp

90 °C (dimer) (lit.)

density

1.013 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

documentation

see Safety & Documentation for available documents

food allergen

no known allergens

organoleptic

creamy; dairy; fatty; milk; buttery

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Other Notes

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pictograms

FlameCorrosion

signalword

Danger

hcodes

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

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

Regulatory Information

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Jhonatan A Hernandez-Valdes et al.
Frontiers in microbiology, 11, 1032-1032 (2020-06-12)
Some secondary metabolites of fermentative bacteria are desired compounds for the food industry. Examples of these compounds are diacetyl and acetaldehyde, which are produced by species of the lactic acid bacteria (LAB) family. Diacetyl is an aromatic compound, giving the
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
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.
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
E Y Hirooka et al.
International journal of food microbiology, 7(3), 185-191 (1988-12-01)
Seventy-three staphylococcal strains isolated from pyrodermatitis in dogs were classified as Staphylococcus intermedius (52 strains) or Staphylococcus aureus (21 strains) on the basis of acetoin formation, anaerobic mannitol fermentation, aerobic maltose fermentation, pigmentation, coagulation of human plasma, and reaction on

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