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Acetoin

Name: Acetoin
Brand: ALDRICH
Price: 60.2 USD
Availability: InStock

May exist as crystalline dimer

Synonym(s):

3-Hydroxy-2-butanone, Acetylmethylcarbinol

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Pack Size	Availability	Price
50 g	Check Cart for Availability	$60.20
250 g	Check Cart for Availability	$157.00
1 kg	Check Cart for Availability	$454.00

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

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Properties

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

Description

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This Item	444286	73815	55201
Sigma-Aldrich A17951 Acetoin	Sigma-Aldrich 444286 (R)-(+)-α-Hydroxy-γ-butyrolactone	Sigma-Aldrich 73815 3-Nitrosalicylic acid	Sigma-Aldrich 55201 DL-α-Hydroxy-β,β-dimethyl-γ-butyrolactone
assay ≥98.0% (GC)	assay 95%	assay ≥98.0% (HPLC)	assay ≥97.0% (T)
Quality Level 100	Quality Level 100	Quality Level 100	Quality Level 100
density 1.013 g/mL at 25 °C (lit.)	density 1.309 g/mL at 25 °C (lit.)	density -	density -
form crystals	form liquid	form crystals	form solid
storage temp. 2-8°C	storage temp. -	storage temp. -	storage temp. -
mp 15 °C (monomer), 90 °C (dimer) (lit.)	mp -	mp 142-147 °C	mp 74-78 °C (lit.)

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pictograms

GHS02,GHS05

signalword

Danger

hcodes

H226,H318

pcodes

P210 - P233 - P240 - P241 - P280 - P305 + P351 + P338

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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Production of (2S,3S)-2,3-butanediol and (3S)-acetoin from glucose using resting cells of Klebsiella pneumonia and Bacillus subtilis.

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

Integrated regulation of acetoin fermentation by quorum sensing and pH in Serratia plymuthica RVH1.

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

Enhanced acetoin production by Serratia marcescens H32 with expression of a water-forming NADH oxidase.

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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Global Trade Item Number

SKU	GTIN
A17951-250G	04061836693473
A17951-50G	04061833343012
A17951-1KG	04061836686826

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