2,3-Pentanedione

2,3-Pentanedione Basic information
Product Name:2,3-Pentanedione
Synonyms:CH3C(O)C(O)C2H5;2,3-PENTANEDITHIOL;2 3-PENTANEDIONE 96+% FCC;2,3-PENTANEDIONE 97%;2,3-PENTANEDIONE FEMA NO.2841;2,3-PENTANEDITHIOL FEMA NO.--------;2,3-PENTANEDIONE 98+%;(2S,3A-S,7AS)-Perhydroindole-2-CarboxylicAcid
CAS:600-14-6
MF:C5H8O2
MW:100.12
EINECS:209-984-8
Product Categories:Pharmaceutical Raw Materials;ketone Flavor;Organics
Mol File:600-14-6.mol
2,3-Pentanedione Structure
2,3-Pentanedione Chemical Properties
Melting point -52 °C (lit.)
Boiling point 110-112 °C (lit.)
density 0.957 g/mL at 25 °C (lit.)
vapor pressure 28.5 hPa (20 °C)
FEMA 2841 | 2,3-PENTANEDIONE
refractive index n20/D 1.404(lit.)
Fp 66 °F
storage temp. 2-8°C
solubility 60g/l
form Liquid
color very deep green-yellow
Odorat 1.00 % in dipropylene glycol. pungent sweet butter creamy caramel nutty cheese
PH4 (H2O)
explosive limit1.8-10.9%(V)
Odor Typebuttery
Water Solubility 60 g/L (15 ºC)
JECFA Number410
BRN 1699638
Exposure limitsNIOSH: TWA 9.3 ppb; STEL 31 ppb
Stability:Stable. Highly flammable - store cool. Incompatible with strong oxidizing agents, reducing agents, strong bases.
InChIKeyTZMFJUDUGYTVRY-UHFFFAOYSA-N
LogP-0.85
CAS DataBase Reference600-14-6(CAS DataBase Reference)
NIST Chemistry Reference2,3-Pentanedione(600-14-6)
EPA Substance Registry System2,3-Pentanedione (600-14-6)
Safety Information
Hazard Codes F,Xi
Risk Statements 11-36/37/38
Safety Statements 16-26-36-37/39
RIDADR UN 1224 3/PG 2
WGK Germany 1
RTECS SA1850000
9-23
Autoignition Temperature265 °C
TSCA Yes
HazardClass 3
PackingGroup II
HS Code 29141990
Hazardous Substances Data600-14-6(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 3000 mg/kg LD50 dermal Rabbit > 2500 mg/kg
MSDS Information
ProviderLanguage
2,3-Pentanedione English
2,3-Pentanedione Usage And Synthesis
Chemical Properties2,3-Pentanedione is a colourless or deep green-yellow colour liquid that has a somewhat sweet odor similar to quinone. This compound has a penetrating, buttery taste on dilution. It is used as flavoring agent or adjuvant.
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.
Uses2,3-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).
Application2,3-Pentanedione can be used as a reactant to synthesize:
Bisphenol derivatives by acid-catalyzed condensation reaction with phenols.
2-Ethyl-3-methyl-1H-indole by Pd-catalyzed reaction with aniline under reductive conditions.
2-Ethyl-3-methylquinoxaline by condensation reaction with o-phenylenediamine using citric acid as a catalyst.
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.
PreparationBy oxidation of methyl propyl ketone with excess NaNO2 and diluted HCl in the presence of hydroxylamine hydrochloride under a nitrogen blanket.
Aroma threshold valuesDetection: 20 ppb. Aroma characteristics at 1.0%: buttery diacetyl-like, fermented dairy and creamy, popcorn buttery.
Taste threshold valuesTaste characteristics at 1 to 5 ppm: sweet buttery, creamy, cheesy, slightly toasted dairy, with a rich baked goods nuance and a good mouthfeel.
General Description2,3-Pentanedione (acetylpropionyl) is one of the aroma active compounds of cereal coffee brew.
Biochem/physiol ActionsTaste at 1-5.0 ppm
Safety ProfileConfirmed human carcinogen. Poison by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating fumes. See also NICKEL COMPOUNDS
4-METHYL-2,3-PENTANEDIONE 7-(BROMOMETHYL)-1,7-DIMETHYLBICYCLO[2.2.1]HEPTANE-2,3-DIONE 2,3-Pentanedione, 5-hydroxy-, 3-oxime (9CI) TRIS(TRIFLUORO-2,4-PENTANEDIONATO)ALUMINUM(III) 5-METHYL-2,3-HEXANEDIONE RHODIZONIC ACID DIHYDRATE 2,4-PENTANEDIONE (13C5, 99%) 1,2,3,4,5-pentaphenyl-1,5-pentanedione RHODIZONIC ACID DIPOTASSIUM SALT Acetylacetone 3,3,6,8-TETRAMETHYL-1,2,3,4-TETRAHYDRONAPHTHALENE-1,2-DIONE Di-tert-butylglyoxal 2,5-DIETHYL-3,4-DIPHENYLCYCLOPENTADIENONE 2,5-DIBROMO-3,4-HEXANEDIONE, 95 TRIQUINOLYL BARIUM RHODIZONATE 3-METHYLCYCLOPENTANE-1,2,4-TRIONE 2,3-HEPTANEDIONE

Email:[email protected] [email protected]
Copyright © 2024 Mywellwork.com All rights reserved.