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319910

Sigma-Aldrich

Furfural

ACS reagent, 99%

Synonym(s):
2-Furaldehyde, Furan-2-carboxaldehyde
Empirical Formula (Hill Notation):
C5H4O2
CAS Number:
Molecular Weight:
96.08
Beilstein:
105755
EC Number:
MDL number:
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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Furfural ACS reagent, 99%

Sigma-Aldrich

319910

Furfural

Furfural ≥98%, FCC, FG

Sigma-Aldrich

W248908

Furfural

Furfural natural, ≥98%, FCC, FG

Sigma-Aldrich

W248924

Furfural

Furfural for synthesis

Sigma-Aldrich

8.04012

Furfural

assay

99%

assay

≥98%

assay

≥98%

assay

≥98% (GC)

form

liquid

form

liquid

form

liquid

form

liquid

refractive index

n20/D 1.525 (lit.)

refractive index

n20/D 1.525 (lit.)

refractive index

n20/D 1.525 (lit.)

refractive index

-

bp

162 °C (lit.)

bp

162 °C (lit.)

bp

162 °C (lit.)

bp

162 °C/1013 hPa

mp

−36 °C (lit.)

mp

−36 °C (lit.)

mp

−36 °C (lit.)

mp

-37 °C

density

1.16 g/mL at 25 °C (lit.)

density

1.16 g/mL at 25 °C (lit.)

density

1.16 g/mL at 25 °C (lit.)

density

1.16 g/cm3 at 20 °C

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

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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