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Merck
CN

31530

2,3-Butanedione

puriss., ≥99.0% (GC)

Synonym(s):

Biacetyl, Diacetyl

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About This Item

Linear Formula:
CH3COCOCH3
CAS Number:
431-03-8
Molecular Weight:
86.09
EC Number:
207-069-8
UNSPSC Code:
12352100
PubChem Substance ID:
24858987
Beilstein/REAXYS Number:
605398
MDL number:
MFCD00008756

Key Documents

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InChI key

QSJXEFYPDANLFS-UHFFFAOYSA-N

InChI

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

SMILES string

CC(=O)C(C)=O

vapor density

3 (vs air)

vapor pressure

52.2 mmHg ( 20 °C)

grade

puriss.

assay

≥99.0% (GC)

autoignition temp.

345 °C

Gene Information

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

refractive index

n20/D 1.394

bp

88 °C (lit.)

transition temp

solidification point −3-1 °C

density

0.985 g/mL at 20 °C, 0.981 g/mL (lit.)

storage temp.

2-8°C

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Other Notes

Reagent for the specific modification of arginine residues in proteins

signalword

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

3 - Flammable liquids

wgk

WGK 2

flash_point_f

44.6 °F - closed cup

flash_point_c

7 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

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P Gacesa et al.
Biochimica et biophysica acta, 661(2), 205-212 (1981-10-13)
Purified bovine testicular hyaluronidase (hyaluronate 4-glycanohydrolase, EC 3.2.1.35) was inactivated by butane-2,3-dione in either borate or Hepes buffer, pH 8.3. The presence of borate enhanced the inactivation process which followed pseudo-first-order kinetics with a calculated second-order rate constant of 13.54M-1
Essential arginyl residues in Escherichia coli alkaline phosphatase.
F J Daemen et al.
Biochemistry, 13(14), 2865-2871 (1974-07-02)
Functional arginyl residues as NADH binding sites of alcohol dehydrogenases.
L G Lange et al.
Biochemistry, 13(21), 4361-4370 (1974-10-08)
Chemical modification of arginine at the active site of the bovine erythrocyte superoxide dismutase.
D P Malinowski et al.
Biochemistry, 18(26), 5909-5917 (1979-12-25)
A G Cruz et al.
Journal of dairy science, 95(5), 2261-2269 (2012-05-01)
We investigated the effect of increased glucose oxidase concentration as a technological option to decrease oxidative stress during the processing of probiotic yogurts. Probiotic yogurts were produced with increased concentrations of glucose oxidase (0, 250, 500, 750, or 1,000 mg/kg)
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