11038

2,3-Butanedione

analytical standard

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

Properties

• Product Name: 2,3-Butanedione, analytical standard
• InChI key: QSJXEFYPDANLFS-UHFFFAOYSA-N
• InChI: 1S/C4H6O2/c1-3(5)4(2)6/h1-2H3
• SMILES string: CC(=O)C(C)=O
• grade: analytical standard
• 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
• Quality Level: 100

Description

Application

2,3-Butanedione may be used as an analytical standard for the determination of the analyte in milk[1] and human breath samples[2] 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.

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.[3][4]

Other Notes

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.

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: 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