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Name	2,5-Dimethylfuran	EINECS	210-914-3
CAS No.	625-86-5	Density	0.917 g/cm³
PSA	13.14000	LogP	1.89640
Solubility	Slightly miscible with water. Miscible with ethanol and fats.	Melting Point	-62 °C
Formula	C₆H₈O	Boiling Point	93.089 °C at 760 mmHg
Molecular Weight	96.1289	Flash Point	29°F
Transport Information	UN 1993 3/PG 2	Appearance	clear colorless to amber liquid
Safety	16	Risk Codes	11
Molecular Structure		Hazard Symbols	F
Synonyms	Furan, 2,5-dimethyl-;2.5-Dimethyl furan;2,5-Dimthylfuran;	Article Data	164

2,5-Dimethylfuran Synthetic route

: 67-47-0
5-hydroxymethyl-2-furfuraldehyde

: 625-86-5
2,5-dimethylfuran

Conditions

Conditions	Yield
With hydrogen under 2250.23 Torr; for 15h;	100%
With CuZnCo-2.5 In ethanol at 200℃; for 0.5h; Temperature; Reagent/catalyst; Solvent; Autoclave;	99.8%
With hydrogen at 160℃; under 7500.75 Torr; for 1.5h; Catalytic behavior; Time; chemoselective reaction;	98.1%

: 67-47-0
5-hydroxymethyl-2-furfuraldehyde

A: 625-86-5
2,5-dimethylfuran

B: 1333-74-0
hydrogen

Conditions

Conditions	Yield
With ethanol at 210℃; for 5h; Reagent/catalyst; Autoclave;	A 99% B n/a

: 110-13-4
2,5-hexanedione

: 625-86-5
2,5-dimethylfuran

Conditions

Conditions	Yield
With MCM-36_M56 zeolite at 349.84℃; under 760.051 Torr; for 0.5h;	98%
With choline chloride; urea at 80℃; for 12h; Paal-Knorr Furan Synthesis;	95%
η-benzene-η-pentamethylcyclopentadienylrhodium(III) tetrafluoroborate at 200℃; for 5h; aldol condensation;	90%

: 1883-75-6
2,5-bis-(hydroxymethyl)furan

: 625-86-5
2,5-dimethylfuran

Conditions

Conditions	Yield
With tetradecane; hydrogen In ethanol at 200℃; under 22502.3 Torr; for 15h; Reagent/catalyst; Temperature; Pressure;	97.6%
With formic acid; sulfuric acid; palladium on carbon In tetrahydrofuran for 15h; Reflux;
With formic acid; sulfuric acid; palladium on activated charcoal In tetrahydrofuran for 15h; Reflux;

: 620-02-0
5-Methylfurfural

: 625-86-5
2,5-dimethylfuran

Conditions

Conditions	Yield
With hydrogen; pyrographite; N,N-dimethyl-formamide; palladium dichloride under 2585.81 Torr; for 1.75h;	96%
With methanol; Cu/Al2O3 at 240℃; for 6h; Reagent/catalyst; Sealed tube;	72.8%
With potassium tert-butylate; hydrazine hydrate In iso-butanol at 120℃; for 4h; Wolff-Kishner Reduction;	62%

: 18091-24-2
5-methyl-2-furfuryl acetate

: 625-86-5
2,5-dimethylfuran

Conditions

Conditions	Yield
With methanol; sodium tetrahydroborate; nickel dichloride at 0℃; for 3h;	95%

: 67-47-0
5-hydroxymethyl-2-furfuraldehyde

A: 534-22-5
2-methylfuran

B: 98-00-0
(2-furyl)methyl alcohol

C: 625-86-5
2,5-dimethylfuran

Conditions

Conditions	Yield
With hydrogen In 1,4-dioxane at 180℃; under 11251.1 Torr; for 2h; Catalytic behavior;	A n/a B n/a C 93.4%

: 1623-88-7
5-chloromethylfurfural

: 625-86-5
2,5-dimethylfuran

Conditions

Conditions	Yield
With palladium on activated charcoal; hydrogen; N,N-dimethyl-formamide In toluene at 35 - 43℃; under 258.581 - 2585.81 Torr; Reagent/catalyst; Solvent; Pressure; Temperature;	93%
With 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone; palladium/alumina; hydrogen In toluene at 30 - 35℃; under 2828.7 - 3345.86 Torr; for 2h; Reagent/catalyst; Solvent;	84%
With palladium on activated charcoal; hydrogen

: 5426-09-5
7-oxanorborn-5-ene-2,3-dicarboxylic anhydride

: 74-88-4
methyl iodide

: 625-86-5
2,5-dimethylfuran

Conditions

Conditions	Yield
With aluminum (III) chloride at 120℃; for 2h; Reagent/catalyst; Temperature;	93%

: 61973-96-4
N-(5-methyl-2-furanylmethylene)-aniline

A: 625-86-5
2,5-dimethylfuran

B: 62-53-3
aniline

Conditions

Conditions	Yield
With palladium 10% on activated carbon; hydrogen In diethyl ether under 1535.79 Torr; for 0.666667h; Solvent;	A n/a B 92%

2,5-Dimethylfuran Chemical Properties

Molecular Structure of 2,5-Dimethyl furane (CAS NO.625-86-5):

IUPAC Name: 2,5-Dimethylfuran
Molecular Formula: C₆H₈O
Molecular Weight: 96.13
EINECS: 210-914-3
Melting Point: -62 °C
Index of Refraction: 1.45
Molar Refractivity: 28.2 cm³
Molar Volume: 104.7 cm³
Surface Tension: 25.9 dyne/cm
Density: 0.917 g/cm³
Flash Point: 29 °F
Enthalpy of Vaporization: 31.91 kJ/mol
Boiling Point: 93.1 °C at 760 mmHg
Vapour Pressure: 57.1 mmHg at 25 °C
storage temp.: Flammables area
Classification Code: Mutation data
Appearance: clear colorless to amber liquid
Canonical SMILES: CC1=CC=C(O1)C
InChI: InChI=1S/C6H8O/c1-5-3-4-6(2)7-5/h3-4H,1-2H3
InChIKey: GSNUFIFRDBKVIE-UHFFFAOYSA-N
Product Categories: Furans; furnan Flavor; Building Blocks; Heterocyclic Building Blocks
Air & Water Reactions: Highly flammable, Insoluble in water

2,5-Dimethylfuran Uses

2,5-Dimethyl furane (CAS NO.625-86-5) is used as a pharmaceutical intermediate and potential biofuel and used for organic synthesis.

2,5-Dimethylfuran Toxicity Data With Reference

1.	dnr-bcs 190 µg/disc	DFSCDX Developments in Food Science. 13 (1986),353.
2.	cyt-ham:ovr 8 mmol/L	CALEDQ Cancer Letters (Shannon, Ireland). 13 (1981),89.
3.	ihl-rat LCLo:500 ppm/4H	JIHTAB Journal of Industrial Hygiene and Toxicology. 31 (1949),343.

2,5-Dimethylfuran Consensus Reports

Reported in EPA TSCA Inventory.

2,5-Dimethylfuran Safety Profile

Moderately toxic by inhalation. Mutation data reported. A very dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidizing materials. Keep away from heat and open flame. To fight fire, use alcohol foam, foam, CO₂, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes.
Safety Information of 2,5-Dimethyl furane (CAS NO.625-86-5):
Hazard Codes: F, Harmful Xn
Risk Statements: 11-22
R11:Highly flammable.
R22:Harmful if swallowed.
Safety Statements: 16
S16:Keep away from sources of ignition.
RIDADR: UN 1993 3/PG 2
WGK Germany: 3
RTECS: LU0875000
F: 8
Hazard Note: Harmful/Flammable
HazardClass: 3
PackingGroup: II

2,5-Dimethylfuran Specification

2,5-Dimethyl furane (CAS NO.625-86-5), its Synonyms are 2,5-Dimethylfuran ; Furan, 2,5-dimethyl- ; 2.5-Dimethyl furan .

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