Furfural

C₅H₄O₂CAS 98-01-196.08 g/mol

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Properties

Molecular formula: C₅H₄O₂
Molar mass: 96.08 g/mol
Exact mass: 96.0211 Da
Density: 1.1563 g/mL (at 25 °C)
Melting point: −38.7 °C
Boiling point: 18.5 °C (at 1 Torr)
Flash point: 60 °C (closed cup)
Water solubility: 83 g/L (20 °C)
logP: 1.09Crippen estimate
Polar surface area: 30.2 Å²
H-bond donors / acceptors: 0 / 2
Rotatable bonds: 1

Hazards

Danger

H301 Toxic if swallowedAcute toxicity, oral
H312 Harmful in contact with skinAcute toxicity, dermal
H315 Causes skin irritationSkin corrosion/irritation
H319 Causes serious eye irritationSerious eye damage/eye irritation
H331 Toxic if inhaledAcute toxicity, inhalation
H335 May cause respiratory irritationSpecific target organ toxicity, single exposure; Respiratory tract irritation
H351 Suspected of causing cancerCarcinogenicity

Harmonised EU classification (CLP Annex VI, index 605-010-00-4), via PubChem.

Precautionary statements

P203, P261, P264, P264+P265, P270, P271, P280, P301+P316, P302+P352, P304+P340, P305+P351+P338, P316, P317, P318, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501

Identifiers

CAS number

98-01-1

SMILES

O=Cc1ccco1

InChIKey

HYBBIBNJHNGZAN-UHFFFAOYSA-N

InChI

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

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Names and synonyms

25 names · show all

2-Furancarboxaldehyde
2-Furaldehyde
Artificial ant oil
Fural
2-Furanaldehyde
2-Furancarbonal
Furfuraldehyde
Furfurol
Furfurole
Furole
Pyromucic aldehyde
α-Furole
Furancarbonal
2-Formylfuran
Furaldehyde
2-Furfural
2-Furfuraldehyde
2-Furylaldehyde
Furfurylaldehyde
2-Furylcarboxaldehyde
2-Furancarbaldehyde
NSC 8841
Furan-2-carboxaldehyde
2-Furanal
Furfurals

Reactions

FURFURAL (2-Furaldehyde)product

Safety data sheets

One stored sheet lists this compound in section 3, matched by the CAS number 98-01-1. Each row opens the sheet with its composition and PDF.

2-Furaldehyde 100 %Fisher Scientific · 2025-12-19

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Work with Furfural

Predict the NMR spectrum1H and 13C shifts with multiplicities Make a solutionWhat to weigh for any molarity and volume Check drug-likenessLipinski, Veber and lead-likeness Isotope patternExact mass and the mass spectrum pattern

Similar compounds

2-Furanacrolein623-30-356 % similar 2-Methyl-3-(2-furyl)acrolein874-66-848 % similar 2,5-Furandicarboxaldehyde823-82-548 % similar Furylacrylic acid539-47-944 % similar Furfurylideneacetone623-15-444 % similar 2-(2-Nitroethenyl)furan699-18-344 % similar 5-Phenyl-2-furaldehyde13803-39-939 % similar 2-Benzofurancarboxaldehyde4265-16-139 % similar

Tanimoto similarity of circular fingerprints over the whole catalogue.

All similar compounds

Same formula

3-Furancarboxaldehyde498-60-2 Alpha-Pyrone504-31-4 2-Cyclopentene-1,4-dione930-60-9

Elsewhere

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