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11038

Supelco

2,3-Butanedione

analytical standard

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:
41116107
PubChem Substance ID:
329749296
NACRES:
NA.24

grade

analytical standard

Quality Level

100

vapor density

3 (vs air)

vapor pressure

52.2 mmHg ( 20 °C)

Assay

≥99.0% (GC)

autoignition temp.

345 °C

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

refractive index

n20/D 1.394 (lit.)

bp

88 °C (lit.)

density

0.981 g/mL (lit.)

application(s)

cleaning products
cosmetics
environmental
flavors and fragrances
food and beverages
personal care

format

neat

SMILES string

CC(=O)C(C)=O

InChI

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

InChI key

QSJXEFYPDANLFS-UHFFFAOYSA-N

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General description

2,3-Butanedione, a volatile compound, is a product of citrate metabolism that is generally produced by certain bacteria including Lactococcus lactis ssp. diacetylactis and Leuconostoc citrovorum. It has a typical buttery flavor and is commonly found in fermented dairy products, such as sour cream, yogurt and cottage cheese.

Application

2,3-Butanedione may be used as an analytical standard for the determination of the analyte in milk and human breath samples by solid-phase microextraction and gas chromatography.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

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Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

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

WGK

WGK 2

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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Certificates of Analysis (COA)

Lot/Batch Number

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