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Heterocyclic building blocks

5-Nitrofurfural

Also known as 5-Nitro-2-furaldehyde, 5-Nitrofurfuraldehyde, Nitrofurfural

CAS 698-63-5Formula C5H3NO4Molar mass 141.08 g/molEC 211-816-3
GHS signal word: Danger. Pictograms: Flammable, Serious health hazard 9 suppliers listed
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5-Nitrofurfural chemical structure, C5H3NO4, CAS 698-63-5
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Pale yellow in petroleum ether
Melting point
35 to 36
Boiling point
128 to 132
Solubility
SLIGHTLY SOL IN WATER, SOL IN PETROLEUM ETHER
HS code
293219
Category
Heterocyclic building blocks

What is 5-Nitrofurfural?

Plain description, key identifiers and synonyms

5-Nitrofurfural is a member of furans and a C-nitro compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-nitrofuran-2-carbaldehyde
CAS number
698-63-5 CAS number cross-checked
EC number
211-816-3
Molecular formula
C5H3NO4
UNII
XXX18AU0Z3
MDL number
MFCD00003230
InChIKey
SXINBFXPADXIEY-UHFFFAOYSA-N
InChI
InChI=1S/C5H3NO4/c7-3-4-1-2-5(10-4)6(8)9/h1-3H
SMILES (canonical and isomeric)
C1=C(OC(=C1)[N+](=O)[O-])C=O

Synonyms

  • 5-Nitro-2-furaldehyde
  • 5-Nitrofurfuraldehyde
  • Nitrofurfural
  • 5-Nitro-2-furfural
  • 2-Furancarboxaldehyde, 5-nitro-
  • 5-Nitro-2-furancarboxaldehyde
  • 2-Furaldehyde, 5-nitro-
  • Furfural, 5-nitro-
  • 5-Nitrofuraldehyde
  • 5-nitrofuran-2-carbaldehyde
  • 5-Furancarboxaldehyde, 5-nitro-
  • 2-Formyl-5-nitrofuran
  • 5-Nitro-5-furancarboxaldehyde
  • Furadoxyl
  • 5-nitro furaldehyde
  • 5-nitro2-furaldehyde
  • 5-nitrofuran aldehyde
  • 5-nitro-furfuraldehyde
  • 5-nitrofuran-2-aldehyde
  • 5-nitro-furan-2-aldehyde
  • 5-17-09-00323 (Beilstein Handbook Reference)
  • 5-Nitro-furan-2-carbaldehyde
  • 5-nitrofuran-2-carboxaldehyde
  • 5-Nitro-2-furaldehyde, 99%
  • 5-Nitro-2-Furaldehyde(Discontinued,See C4X-127229)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Pale yellow in petroleum etherexp.
Melting point
35 to 36exp.
Boiling point
128 to 132exp.
Solubility
SLIGHTLY SOL IN WATER, SOL IN PETROLEUM ETHERexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
141.08 g/molcalc.
Exact mass
141.0062 Dacalc.
LogP (octanol/water)
1calc.
Topological polar surface area
73.35 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
2calc.
Heavy atoms
10calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccoc1

c1ccoc1

1 ring, 5 atoms, the Furan ring system.

12,988 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS02: Flammable
Flammable
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H228Flammable solid.
  • H341Suspected of causing genetic defects.
Precautionary statements (9)
  • P203Obtain, read and follow all safety instructions before use.
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

5-Nitrofurfural suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 9 suppliers
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Where suppliers are based

9 suppliers in 6 countries

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5-Nitrofurfural price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Chemical intermediate for nitrofuran antibacterial drug products.

How it is made

Nitration of furfural followed by conversion of the intermediate 2-acetoxy-2,5-dihydrofuran with pyridine

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 5-Nitrofurfural is traded under.

HS 2932.19Indicative HS code

Compounds containing an unfused furan ring (whether or not hydrogenated) in the…

World exports in 2024
$2.62B
−6.4% vs 2023, imports $2.56B
2019 to 2024
Top exporters
  1. Germany57.9%
  2. Italy11.5%
  3. China10.4%
Top importers
  1. Greece40.4%
  2. Japan16.3%
  3. Germany12.8%
Reported customs values in USD, not prices.Full trade data

The HS code shown for 5-Nitrofurfural is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 5-Nitrofurfural, based on the data on this page

What is 5-Nitrofurfural?

5-Nitrofurfural is a member of furans and a C-nitro compound.

What is the CAS number of 5-Nitrofurfural?

The CAS registry number of 5-Nitrofurfural is 698-63-5.

What is the molecular formula and weight of 5-Nitrofurfural?

The molecular formula of 5-Nitrofurfural is C5H3NO4 and its molar mass is 141.08 g/mol.

What is 5-Nitrofurfural used for?

Chemical intermediate for nitrofuran antibacterial drug products.

Is 5-Nitrofurfural hazardous?

5-Nitrofurfural carries the GHS signal word "Danger". Main hazards: flammable solid, suspected of causing genetic defects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 5-Nitrofurfural?

5-Nitrofurfural is usually classified under HS code 293219 (Compounds containing an unfused furan ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 5-Nitrofurfural?

CompoundList lists 9 suppliers of 5-Nitrofurfural in China, Canada, Czech Republic, Hong Kong and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 5-Nitrofurfural?

Suppliers quote 5-Nitrofurfural on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 5-Nitrofurfural

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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