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Key Documents

319910

Sigma-Aldrich

Furfural

ACS reagent, 99%

Synonym(s):

2-Furaldehyde, Furan-2-carboxaldehyde

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About This Item

Empirical Formula (Hill Notation):
C5H4O2
CAS Number:
Molecular Weight:
96.08
Beilstein:
105755
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

vapor density

3.31 (vs air)

vapor pressure

13.5 mmHg ( 55 °C)

Assay

99%

form

liquid

autoignition temp.

599 °F

expl. lim.

19.3 %

impurities

≤0.02 meq/g

evapn. residue

≤0.5%

refractive index

n20/D 1.525 (lit.)

bp

162 °C (lit.)

mp

−36 °C (lit.)

density

1.16 g/mL at 25 °C (lit.)

SMILES string

[H]C(=O)c1ccco1

InChI

1S/C5H4O2/c6-4-5-2-1-3-7-5/h1-4H

InChI key

HYBBIBNJHNGZAN-UHFFFAOYSA-N

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Application

Furfural can be used as a reactant to synthesize:
  • Furfuryl alcohol via Cannizzaro reaction.
  • Furancarboxylic acid via nickel-catalyzed oxidation.
  • Dimer via base-catalyzed aldol condensation with cyclopentanone.

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Chronic 3 - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

136.4 °F - closed cup

Flash Point(C)

58 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Production of feruloylated arabinoxylo-oligosaccharides from maize (Zea mays) bran by microwave-assisted autohydrolysis.
Rose DJ and Inglett GE.
Food Chemistry, 119(4), 1613-1618 (2010)
Cyclopentanone: A raw material for production of C15 and C17 fuel precursors
Hronec M, et al.
Biomass and Bioenergy, 63, 291-299 (2014)
The occurrence of Cannizzaro reaction over Mg-Al hydrotalcites
Kikhtyanin O, et al.
Applied Catalysis A: General, 525, 215-225 (2016)
Selective hydrogenation of furfural and levulinic acid to biofuels on the ecofriendly Cu-Fe catalyst.
Yan K and Chen A.
Fuel: The Science and Technology of Fuel and Energy, 115, 101-108 (2014)
Domino reaction catalyzed by zeolites with Brønsted and Lewis acid sites for the production of γ-valerolactone from furfural.
Linh Bui et al.
Angewandte Chemie (International ed. in English), 52(31), 8022-8025 (2013-06-13)

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