11038

Diacetyl

analytical standard

• Synonym(e): 2,3-Butandiol
• Lineare Formel: CH₃COCOCH₃
• CAS-Nummer: 431-03-8
• Molekulargewicht: 86.09
• Beilstein: 605398
• EG-Nummer: 207-069-8
• MDL-Nummer: MFCD00008756
• UNSPSC-Code: 41116107
• PubChem Substanz-ID: 329749296
• NACRES: NA.24

Eigenschaften

• Qualität: analytical standard
• Qualitätsniveau: 100
• Dampfdichte: 3 (vs air)
• Dampfdruck: 52.2 mmHg ( 20 °C)
• Assay: ≥99.0% (GC)
• Selbstzündungstemp.: 345 °C
• Haltbarkeit: limited shelf life, expiry date on the label
• Methode(n): HPLC: suitable; gas chromatography (GC): suitable
• Brechungsindex: n20/D 1.394 (lit.)
• bp: 88 °C (lit.)
• Dichte: 0.981 g/mL (lit.)
• Anwendung(en): 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
• InChIKey: QSJXEFYPDANLFS-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

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.

Anwendung

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.

Empfohlene Produkte

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Sicherheitshinweise

• Piktogramme: GHS02,GHS06,GHS08,GHS05
• Signalwort: Danger
• H-Sätze: H225,H302,H315,H317,H318,H331,H373
• P-Sätze: P210 - P280 - P301 + P312 - P304 + P340 + P311 - P305 + P351 + P338 - P314
• Gefahreneinstufungen: Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 2
• Flammpunkt (°F): 44.6 °F - closed cup
• Flammpunkt (°C): 7 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, Heavyweight Gloves, Safety Clothing, type ABEK (EN14387) respirator filter