2,5-Furandicarboxaldehyde
2,5-Furandicarboxaldehyde (CAS: 823-82-5), with the molecular formula C6H4O3 and a molecular weight of 124.09 g/mol, is a vital heterocyclic building block. This furan derivative features two aldehyde functional groups, making it a versatile intermediate in organic synthesis. It is primarily employed in the creation of polymers, pharmaceuticals, and various fine chemicals, offering a unique scaffold for complex molecular structures.
- IUPAC
- 2,5-Furandicarbaldehyde,2,5-Diformylfuran,5-Formylfurfural
- Synonyms
- 2,5-Furandicarbaldehyde2,5-Diformylfuran5-Formylfurfural

Polymer Synthesis
2,5-Furandicarboxaldehyde serves as a key monomer in the synthesis of furan-based polymers, contributing to materials with novel thermal and mechanical properties.
Pharmaceutical Intermediates
Its reactive aldehyde groups allow for straightforward derivatisation, making it a valuable intermediate in the multi-step synthesis of active pharmaceutical ingredients (APIs).
Organic Synthesis Reagent
The compound is widely used as a building block in academic and industrial research for the construction of complex organic molecules and novel heterocyclic systems.
Fine Chemical Production
It acts as a precursor for various fine chemicals, contributing to the development of dyes, fragrances, and other specialty chemical products.
| Molecular weight | 124.09 |
|---|---|
| Empirical formula | C6H4O3 |
| Assay | ≥96.5% (HPLC)97% |
| Storage temperature | −20°C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2,5-Furandicarboxaldehyde used for?
+
2,5-Furandicarboxaldehyde is used as a building block in organic synthesis, primarily for the production of polymers, pharmaceutical intermediates, and various fine chemicals.
What is the CAS number and formula for 2,5-Furandicarboxaldehyde?
+
The CAS number is 823-82-5, and the empirical formula (Hill notation) is C6H4O3.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 2,5-Furandicarboxaldehyde with an assay of ≥96.5% (HPLC) or 97%. This product is intended for research and laboratory use, and TSS does not represent it as USP, BP, EP, or other pharmacopoeia grades.
How should 2,5-Furandicarboxaldehyde be handled safely?
+
Handle 2,5-Furandicarboxaldehyde with appropriate personal protective equipment. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Avoid breathing dust/fume/gas/mist/vapours/spray. In case of contact with eyes, rinse cautiously with water for several minutes (P305 + P351 + P338).
How is 2,5-Furandicarboxaldehyde stored and shipped?
+
2,5-Furandicarboxaldehyde should be stored at -20°C. As a global supplier, Tech Serve Solutions exports this chemical adhering to all relevant international shipping regulations for hazardous materials.
How can I request a sample or quote for 2,5-Furandicarboxaldehyde?
+
To request a sample or a quote, please contact the Tech Serve Solutions sales team through our website or by phone, providing your contact details and the quantity required.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis