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Grundinformationen
- Standard-SMILES
CCC(=O)C(C)=O- InChIKey
TZMFJUDUGYTVRY-UHFFFAOYSA-N- Summenformel
- C5H8O2
- Durchschnittliche Molmasse
- 100,117 g/mol
- Monoisotopische Masse
- 100,0524295
Namen und Bezeichner
- Bevorzugter Name
- 2,3-Pentanedione
- IUPAC
- Pentane-2,3-dione
- Lokaler Name
- Pentan-2,3-dion
- Englischer Name
- 2,3-Pentanedione
- Summenformel
- C5H8O2
- Molmasse
- 100.12
Namen und Synonyme
Datenbank-Bezeichner
- CAS
600-14-6- PubChem CID
- 11747
- DTXSID
DTXSID6051435- ChEMBL
CHEMBL192809- ChEBI
CHEBI:52774- UNII
- K4WBE45SCM
- EC Number
- 209-984-8
- Nikkaji
- J69.485A
Eigenschaften
Physikochemische Eigenschaften
- Schmelzpunkt
- -52 °C · -52 °C (lit.)
- Siedepunkt
- 110 · 110-112 °C (lit.)
- Dichte
- 0.957 g/mL · 0.957 g/mL at 25 °C (lit.)
- Dampfdruck
- 28.5 hPa · 28.5 hPa (20 °C)
- FEMA
- 2841 · 2841 | 2,3-PENTANEDIONE
- Brechungsindex
- 20 · n20/D 1.404(lit.)
- Flammpunkt
- 66 °F · 66 °F
- storage temp.
- 2 · 2-8°C
- Löslichkeit
- 60 g/l · 60g/l
- Aggregatzustand
- Liquid
- Farbe
- very deep green-yellow
- PH
- 4 · 4 (H2O)
- Geruch (Odor)
- 1 % · at 1.00 % in dipropylene glycol. pungent sweet butter creamy caramel nutty cheese
- Geruchsart
- buttery
- Biologische Quelle
- synthetic
- Explosionsgrenze
- 1.8 · 1.8-10.9%(V)
- Wasserlöslichkeit
- 60 g/L · 60 g/L (15 ºC)
- JECFA Number
- 410 · 410
- BRN
- 1699638 · 1699638
- Henry's Law Constant
- 1.3 · 1.3×10-1 mol/(m3Pa) at 25℃, Wu et al. (2022)
- Stabilität
- Stable. Highly flammable - store cool. Incompatible with strong oxidizing agents, reducing agents, strong bases.
- Major Application
- flavors and fragrances
- InChI
- 1S/C5H8O2/c1-3-5(7)4(2)6/h3H2,1-2H3
- InChIKey
- TZMFJUDUGYTVRY-UHFFFAOYSA-N
- SMILES
- CCC(=O)C(C)=O
- LogP
- -0.85 · -0.85
- CAS Datenbank
- 600 · 600-14-6(CAS DataBase Reference)
- NIST chemische Informationen
- 2 · 2,3-Pentanedione(600-14-6)
- EPA chemische Informationen
- 2 · 2,3-Pentanedione (600-14-6)
Sicherheit und Regulatorisches
Sicherheitsdaten
- F
- 9-23
- wgk
- 1
- tsca
- TSCA listed
- ridadr
- UN 1224 3/PG 2
- hs_code
- 29141990
- RTECS-Nr.
- SA1850000
- risk_code
- 11-36/37/38
- Toxizität
- LD50 orally in Rabbit: 3000 mg/kg LD50 dermal Rabbit > 2500 mg/kg
- hazard_code
- F,Xi
- safety_code
- 16-26-36-37/39
- hazard_class
- 3
- packing_group
- II
- Speicherklasse
- 3 - Flammable liquids
- Giftige Stoffe Daten
- 600-14-6(Hazardous Substances Data)
- Hazard Classifications
- Flam. Liq. 2Skin Sens. 1BSTOT RE 2
- Selbstentzündungstemperatur
- 265 °C
Chemie und Industrie
Anwendungen
Occurrence2,3-Pentanedione occurs in butter, bread, milk, yogurt, chicken, meat, cocoa, coffee, potato chips, roasted almonds, pecans, beer, red and white wine, rum and whiskey. The organoleptic profile can be described as creamy, penetrating, cheesy, oily, sweet, buttery, almondlike, brown roasted, and somewhat caramellic, with a fruity nuance.
Verwenden2,3-Pentanedione may be used as a reference standard in the determination of 2,3-pentanedione in beer samples using headspace-gas chromatographic technique (HS-GC).
Darstellung
synthetischeBy oxidation of methyl propyl ketone with excess NaNO2 and diluted HCl in the presence of hydroxylamine hydrochloride under a nitrogen blanket.
Vor- und nachgelagerte Produkte
Vorgelagerte Rohstoffe
Nachgelagerte Produkte
Anbieter50 Anbieter
Ergänzende Hinweise
DefinitionChEBI: 2,3-Pentanedione is an alpha-diketone that is pentane substituted at the 2- and 3-positions by oxo groups. It has a role as a flavouring agent. It is an alpha-diketone and a methyl ketone. It derives from a hydride of a pentane.
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