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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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grade

Kosher, natural

assay

≥96%

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.)

application(s)

flavors and fragrances

documentation

see Safety & Documentation for available documents

food allergen

no known allergens

organoleptic

creamy; dairy; fatty; milk; buttery

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

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
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