Skip to Content
MilliporeSigma
All Photos(1)

Documents

W200808

Sigma-Aldrich

Acetoin

primarily dimer, ≥95%, FG

Synonym(s):

3-Hydroxy-2-butanone, Acetylmethylcarbinol

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
CH3COCH(OH)CH3
CAS Number:
513-86-0
Molecular Weight:
88.11
FEMA Number:
2008
Beilstein/REAXYS Number:
385636
EC Number:
208-174-1
Council of Europe no.:
749
MDL number:
MFCD00004521
UNSPSC Code:
12164502
PubChem Substance ID:
24900795
Flavis number:
7.051
NACRES:
NA.21

biological source

synthetic

Quality Level

400

grade

FG
Fragrance grade
Halal
Kosher

agency

follows IFRA guidelines

reg. compliance

EU Regulation 1223/2009
EU Regulation 1334/2008 & 178/2002
FDA 21 CFR 117
FDA 21 CFR 182.60

assay

≥95%

refractive index

n20/D 1.417 (lit.)

bp

148 °C (lit.)

mp

15 °C (monomer)
90 °C (dimer) (lit.)

solubility

acetone: soluble(lit.)
water: soluble(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

fragrance allergen

no known allergens

organoleptic

butter; creamy; cheesy

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Acetoin is a volatile compound widely employed as flavour and fragrance compound in foods, cigarettes, cosmetics, detergents, chemical synthesis, plant growth promoters and biological pest controls. Acetoin is the main extracellular product of Bacilus subtilis grown on glucose and other fermentable carbon sources. It contributes to the aroma and flavor associated with alcoholic beverages. Production of acetoin by wine yeast fermentation has been reported. Acetoin is naturally present in buttery foods such as beer, butter and cheese. Determination of diacetyl and acetoin to evaluate the workplace exposures at a popcorn processing facility has been reported.
Acetoin is an acyloin derivative. In the presence of light and moisture it transforms into a white colored solid dimer. It is formed by the reduction of diacetyl. It has been synthesized from acetaldehyde.

Application


  • Role of Volatile Organic Compounds Produced by Kosakonia cowanii Cp1 during Competitive Colonization Interaction against Pectobacterium aroidearum SM2.: This study investigates the role of volatile organic compounds, including acetoin, produced by Kosakonia cowanii Cp1 in inhibiting Pectobacterium aroidearum SM2, highlighting the potential of acetoin in biocontrol applications (Mena Navarro et al., 2024).

  • Chemical imitation of yeast fermentation by the drosophilid-pollinated deceptive trap-flower Aristolochia baetica (Aristolochiaceae).: The research explores how Aristolochia baetica mimics yeast fermentation, including the production of acetoin, to attract drosophilid pollinators, emphasizing acetoin′s role in plant-pollinator interactions (Rupp et al., 2024).

  • Investigating the impact of various sorghum types on the key aroma compounds of Sichuan Xiaoqu Baijiu through application of the sensomics approach.: This study examines how different sorghum types influence the key aroma compounds, including acetoin, in Sichuan Xiaoqu Baijiu, demonstrating acetoin′s significance in food and beverage flavor profiles (Ma et al., 2024).

  • Regulation of Tetramethylpyrazine Formation by the Phenolics-Fenton Coupled Redox Cycling System.: The research delves into the biochemical pathways regulated by acetoin in the formation of tetramethylpyrazine, providing insights into its role in flavor compound biosynthesis (Xu et al., 2024).

  • Design of a synthetic enzyme cascade for the in vitro fixation of formaldehyde to acetoin.: This paper presents the development of a synthetic enzyme cascade to convert formaldehyde to acetoin, showcasing its potential in biotechnological applications for formaldehyde detoxification (Cui et al., 2024).

Legal Information

Additional information may be required prior to purchase of this material

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Flam. Sol. 2 - Skin Irrit. 2

Storage Class

4.1B - Flammable solid hazardous materials

wgk_germany

WGK 1

ppe

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 7

1 of 7

2,3-Butanedione 97%

Sigma-Aldrich

B85307

2,3-Butanedione

2,3-Pentanedione natural, ≥96%, FG

Sigma-Aldrich

W284114

2,3-Pentanedione

2,3-Pentanedione 97%

Sigma-Aldrich

241962

2,3-Pentanedione

2,3-Butanedione analytical standard

Supelco

11038

2,3-Butanedione

meso-2,3-Butanediol 99%

Sigma-Aldrich

361461

meso-2,3-Butanediol

1,3-Diisopropyl-2-thiourea 99%

Sigma-Aldrich

D126802

1,3-Diisopropyl-2-thiourea

Isovaleric acid ≥99%, FCC, FG

Sigma-Aldrich

W310204

Isovaleric acid

2, 3-Butanediol and Acetoin Production from Enzymatic Hydrolysate of Ionic Liquid-pretreated Cellulose by Paenibacillus polymyxa.
Jiang L-Q, et al.
BioResources, 10(1), 1318-1329 (2015)
Zijun Xiao et al.
Biotechnology advances, 32(2), 492-503 (2014-01-15)
Acetoin is a volatile compound widely used in foods, cigarettes, cosmetics, detergents, chemical synthesis, plant growth promoters and biological pest controls. It works largely as flavour and fragrance. Since some bacteria were found to be capable of vigorous acetoin biosynthesis
Stephanie M Pendergrass
Environmental science & technology, 38(3), 858-861 (2004-02-19)
Separate sampling and analytical methods for the determination of diacetyl and acetoin have been developed to assess workplace exposures at a popcorn processing facility have been described. Diacetyl (NMAM 2557) is efficiently recovered from an Anasorb CMS sampler tube when
Xian Zhang et al.
Metabolic engineering, 23, 34-41 (2014-02-15)
Bacillus subtilis produces acetoin as a major extracellular product. However, the by-products of 2,3-butanediol, lactic acid and ethanol were accompanied in the NADH-dependent pathways. In this work, metabolic engineering strategies were proposed to redistribute the carbon flux to acetoin by
Origin and Production of Acetoin during Wine Yeast Fermentation.
P Romano et al.
Applied and environmental microbiology, 62(2), 309-315 (1996-02-01)
View All Related Papers

Protocols

GC Analysis of Volatiles in Roasted Coffee Beans on Omegawax® after SPME using a 50/30 µm DVB/Carboxen/PDMS Fiber

-Cymene; 2,5-Dimethylpyrrole; Acetoin, ≥96%, FCC, FG; 2,5-Dimethylpyrazine; 2,6-Dimethylpyrazine; 2-Ethylpyrazine, ≥98%, FG; 2,3-Dimethylpyrazine; 4-Heptanone; 3-Ethylpyridine; 2,3,5-Trimethylpyrazine; Furfural; Pyrrole; Furfuryl acetate; Linalool; Linalyl acetate; 5-Methylfurfural; γ-Butyrolactone; 2-Acetyl-1-methylpyrrole; Furfuryl alcohol; 2-Acetylpyrrole; Pyrrole-2-carboxaldehyde

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service