11038

2,3-Butanedione

analytical standard

• Synonym(s): Biacetyl, Diacetyl
• Linear Formula: CH₃COCOCH₃
• CAS Number: 431-03-8
• Molecular Weight: 86.09
• Beilstein/REAXYS Number: 605398
• EC Number: 207-069-8
• MDL number: MFCD00008756
• UNSPSC Code: 41116107
• PubChem Substance ID: 329749296
• NACRES: NA.24

Properties

• 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

Description

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.

Recommended products

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Safety Information

• pictograms: GHS02,GHS06,GHS08,GHS05
• signalword: Danger
• hcodes: H225,H302,H315,H317,H318,H331,H373
• pcodes: P210 - P280 - P301 + P312 - P304 + P340 + P311 - P305 + P351 + P338 - P314
• 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_germany: WGK 2
• flash_point_f: 44.6 °F - closed cup
• flash_point_c: 7 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, Heavyweight Gloves, Safety Clothing, type ABEK (EN14387) respirator filter