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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:
98-01-1
Molecular Weight:
96.08
Beilstein:
105755
EC Number:
202-627-7
MDL number:
MFCD00003229
UNSPSC Code:
12352100
PubChem Substance ID:
24859198
NACRES:
NA.21
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grade

ACS reagent

Quality Level

200

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.)

functional group

aldehyde

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[1].
  • Furancarboxylic acid via nickel-catalyzed oxidation.
  • Dimer via base-catalyzed aldol condensation with cyclopentanone[2].

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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Certificates of Analysis (COA)

Lot/Batch Number
MKCV8670
MKCV8610
MKCS1214
MKCQ9792
MKCN1666

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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)
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)
Jianmin Zhang et al.
Journal of medicinal chemistry, 50(8), 1850-1864 (2007-03-27)
The 3C-like protease (3CLpro), which controls the severe acute respiratory syndrome (SARS) coronavirus replication, has been identified as a potential target for drug design in the treatment of SARS. A series of tetrapeptide phthalhydrazide ketones, pyridinyl esters, and their analogs
Integrated furfural production as a renewable fuel and chemical platform from lignocellulosic biomass.
Cai CM, et al.
Journal of Chemical Technology and Biotechnology, 89(1), 2-10 (2014)
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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