ChemicalBook--->CAS DataBase List--->28664-35-9

28664-35-9

28664-35-9 Structure

28664-35-9 Structure
IdentificationMore
[Name]

4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one
[CAS]

28664-35-9
[Synonyms]

2,3-DIMETHYL-4-HYDROXY-2,5-DIHYDROFURAN-5-ONE
3-HYDROXY-4,5-DIMETHYL-2(5H)-FURANONE
4,5-DIMETHYL-3-HYDROXY-2,5-DIHYDROFURAN-2-ONE
4,5-DIMETHYL-3-HYDROXY-2(5H)-FURANONE
CARAMEL FURANONE
FEMA 3634
Fenugreck Lactone
FENUGREEK LACTONE
SOTOLON
SOTOLONE
SUGAR LACTONE
2(5H)-Furanone, 3-hydroxy-4,5-dimethyl-
3-Hydoxy-4,5-dimethyl-2(5H)-furanone
3-hydroxy-4,5-dimethyl-2(5h)-furanon
3-hydroxy-4,5-dimethyl-2(5H)-furanone (sotolon)
3-hydroxy-4,5-dimethyl-5H-furan-2-one
4,5-dimethyl-3-hydroxy-2(5H)-furanone (sotolon)
dimethylhydroxyfuranone
Furan-2(5H)-one, 3-hydroxy-4,5-dimethyl-
4,5-Dimethyl-3-hydroxy-2(5H)-furanone (ca. 14% in propylene glycol)
[EINECS(EC#)]

249-136-4
[Molecular Formula]

C6H8O3
[MDL Number]

MFCD00059957
[Molecular Weight]

128.13
[MOL File]

28664-35-9.mol
Chemical PropertiesBack Directory
[Appearance]

clear yellow liquid
[Melting point ]

26-29 °C(lit.)
[Boiling point ]

184 °C(lit.)
[density ]

1.049 g/mL at 25 °C
[FEMA ]

3634
[refractive index ]

n20/D 1.491(lit.)
[Fp ]

>230 °F
[storage temp. ]

Refrigerator (+4°C)
[form ]

neat
[pka]

9.28±0.40(Predicted)
[Odor]

at 0.01 % in propylene glycol. extremely sweet strong caramel maple burnt sugar coffee
[Odor Type]

caramellic
[JECFA Number]

243
[InChIKey]

UNYNVICDCJHOPO-UHFFFAOYSA-N
[LogP]

-0.44
[CAS DataBase Reference]

28664-35-9(CAS DataBase Reference)
[NIST Chemistry Reference]

2(5H)-furanone, 3-hydroxy-4,5-dimethyl-(28664-35-9)
[EPA Substance Registry System]

28664-35-9(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

R20/22:Harmful by inhalation and if swallowed .
[Safety Statements ]

S36:Wear suitable protective clothing .
[WGK Germany ]

3
[HS Code ]

29329990
Hazard InformationBack Directory
[Chemical Properties]

3-Hydroxy-4,5-dimethyl-2(5H)-furanone was found in, for example, fenugreek, coffee, sake, and florsherry. Its aroma characteristic changes from caramel-like at low concentrations to curry-like at high concentrations. A method described for its preparation comprises condensation of ethyl propionate with diethyl oxalate and reaction of the intermediately formed diethyl oxalylpropionate with acetaldehyde. Acidic decarboxylation of the ethyl 4,5-dimethyl-2,3-dioxodihydrofuran-4-carboxylate gives the title compound.
[Chemical Properties]

clear yellow liquid
[Occurrence]

Reported found in roasted Virginia tobacco, beef broth, beer, sherry, botryized wine, coffee, tea, fenugreek, sake and rice wine.
[Uses]

4,5-Dimethyl-3-hydroxy-2(5H)-furanone-13C3 is a labelled analogue of 4,5-Dimethyl-3-hydroxy-2(5H)-furanone (D473600). 4,5-Dimethyl-3-hydroxy-2(5H)-furanone is a fragrant compound that is a key indicator of maple syrup urine disease, a disorder affecting newborn children that is the result of its inability to properly metabolize Valine (V094205), Leucine (L330110) and Isoleucine (I820175). 4,5-Dimethyl-3-hydroxy-2(5H)-furanone is naturally found in fenugreek seeds, and is an odourant present in sherry wines.
[Definition]

ChEBI: Sotolone is a butenolide. It has a role as a metabolite.
[Aroma threshold values]

Aroma characteristics at 1.0%; sweet, strong brown, cyclotene and maple like, caramel, toffee, maltol-like and burnt, brown sugar fenugreek-like, cooked and syrupy.
[Taste threshold values]

Taste characteristics at 5–25 ppm; sweet, caramel, maple, walnut, brown sugar, nutty, cotton candy, fenugreek and celery-like, rum, roasted meaty with a honey nuance
Spectrum DetailBack Directory
[Spectrum Detail]

4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one(28664-35-9)1HNMR
4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one(28664-35-9)FT-IR
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

4,5-Dimethyl-3-hydroxy-2(5H)-furanone, 98%(28664-35-9)
[Sigma Aldrich]

28664-35-9(sigmaaldrich)
[TCI AMERICA]

4,5-Dimethyl-3-hydroxy-2(5H)-furanone  (ca. 14% in Propylene Glycol, ca. 1.2mol/L)(28664-35-9)
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