4-Pyridinecarboxaldehyde N-oxide
4-Pyridinecarboxaldehyde N-oxide (CAS 7216-42-4) is a heterocyclic organic compound with the molecular formula C6H5NO2 and a molecular weight of 123.11 g/mol. As a pyridine derivative and an aldehyde, it serves as a valuable building block in organic synthesis. Its specific reactivity makes it suitable for various chemical transformations and the construction of more complex molecular architectures, particularly in the fields of medicinal chemistry and materials science.

Organic Synthesis Intermediate
4-Pyridinecarboxaldehyde N-oxide is utilised as a key intermediate in the synthesis of various organic compounds. Its functional groups allow for diverse chemical modifications, enabling the creation of complex molecular structures.
Pharmaceutical Research
This compound finds application in the development of novel pharmaceutical agents. Its pyridine N-oxide core is present in structures explored for their biological activities.
Heterocyclic Chemistry
As a heterocyclic building block, it is employed in the construction of diverse pyridine-containing molecules. These structures are of interest in medicinal chemistry and materials science.
| Molecular weight | 123.11 |
|---|---|
| Empirical formula | C6H5NO2 |
| Assay | 97% |
| Solubility | methylene chloride: soluble25 mg/mL, clear, colorless to yellow |
| Melting point | 150-152 °C(lit.) |

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
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 4-Pyridinecarboxaldehyde N-oxide used for?
+
4-Pyridinecarboxaldehyde N-oxide (CAS 7216-42-4) is primarily used as an intermediate in organic synthesis, particularly in the fields of pharmaceutical research and heterocyclic chemistry.
What are the CAS number and formula for 4-Pyridinecarboxaldehyde N-oxide?
+
The CAS number is 7216-42-4 and the molecular formula is C6H5NO2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 4-Pyridinecarboxaldehyde N-oxide with a minimum purity of 97%. This product is suitable for research and general laboratory use. Tech Serve Solutions does not represent this product as USP, BP, or EP grade.
How should 4-Pyridinecarboxaldehyde N-oxide be handled?
+
4-Pyridinecarboxaldehyde N-oxide is classified as a Warning substance (GHS07). It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a dust mask (type N95 or equivalent). Ensure adequate ventilation. Avoid breathing dust.
Is 4-Pyridinecarboxaldehyde N-oxide exported by Tech Serve Solutions?
+
Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 4-Pyridinecarboxaldehyde N-oxide.
How can I request a sample or quote for 4-Pyridinecarboxaldehyde N-oxide?
+
To request a sample or a quote for 4-Pyridinecarboxaldehyde N-oxide, please visit the product page on the Tech Serve Solutions website or contact our sales team directly.
▶ 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