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B85307

Sigma-Aldrich

2,3-Butanedione

97%

Synonym(s):

Biacetyl, Diacetyl

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About This Item

Linear Formula:
CH3COCOCH3
CAS Number:
431-03-8
Molecular Weight:
86.09
Beilstein:
605398
EC Number:
207-069-8
MDL number:
MFCD00008756
UNSPSC Code:
12352100
PubChem Substance ID:
24892076
NACRES:
NA.22

vapor density

3 (vs air)

Quality Level

100

vapor pressure

52.2 mmHg ( 20 °C)

Assay

97%

form

liquid

autoignition temp.

345 °C

refractive index

n20/D 1.394 (lit.)

bp

88 °C (lit.)

density

0.981 g/mL (lit.)

storage temp.

2-8°C

SMILES string

CC(=O)C(C)=O

InChI

1S/C4H6O2/c1-3(5)4(2)6/h1-2H3

InChI key

QSJXEFYPDANLFS-UHFFFAOYSA-N

Gene Information

human ... ACHE(43) , BCHE(590) , CES1(1066)

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Application

Inactivates aminopeptidase-N. Cyclocondensation with amines has been used to form triazine and pteridine ring systems. Also used as a precursor to α-diones.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

44.6 °F - closed cup

Flash Point(C)

7 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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’.

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Australian Journal of Chemistry, 43, 1449-1449 (1990)
T R Leonard et al.
American journal of physiology. Cell physiology, 299(6), C1398-C1401 (2010-09-17)
It has been accepted for half a century that, for a given level of activation, the steady-state isometric force of a muscle sarcomere depends exclusively on the amount of overlap between the contractile filaments actin and myosin, or equivalently sarcomere
Tetrahedron Letters, 32, 3879-3879 (1991)
A Helene et al.
European journal of biochemistry, 196(2), 385-393 (1991-03-14)
Sequence analysis of aminopeptidase N has shown that this zinc exopeptidase contains a consensus sequence (Val-Xaa-Xaa-His-Glu-Xaa-Xaa-His), generally found at the active site of zinc endopeptidases [Jongeneel, C. V., Bouvier, J. and Bairoch, A. (1989) FEBS Lett. 242, 211-214]. This suggests
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
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