3,4-Pyridinedicarboxylic acid
3,4-Pyridinedicarboxylic acid (CAS: 490-11-9), also known as Cinchomeronic acid, is a key heterocyclic building block with the molecular formula C7H5NO4 and a molecular weight of 167.12 g/mol. This pyridine derivative is commonly employed in chemical synthesis, particularly for the construction of more complex organic molecules. Its utility spans research and development within the fine chemical and pharmaceutical sectors, serving as a versatile intermediate.
- IUPAC
- Cinchomeronic acid
- Synonyms
- Cinchomeronic acid

Chemical Synthesis Intermediate
3,4-Pyridinedicarboxylic acid serves as a valuable building block in organic synthesis. It is utilized in the creation of novel compounds and complex molecular architectures, especially within research laboratories and process development.
Heterocyclic Chemistry
As a pyridine derivative, this compound is instrumental in heterocyclic chemistry. It can be incorporated into various synthetic routes to produce specialized heterocyclic compounds with potential applications in medicinal chemistry and material science.
Research and Development
This chemical is employed in academic and industrial research settings for exploring new chemical reactions and developing novel molecules. Its defined structure makes it suitable for various investigative studies.
| Molecular weight | 167.12 |
|---|---|
| Empirical formula | C7H5NO4 |
| Assay | 97% |
| Melting point | 262 °C (dec.)(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 3,4-Pyridinedicarboxylic acid used for?
+
3,4-Pyridinedicarboxylic acid is primarily used as a building block in chemical synthesis, particularly within heterocyclic chemistry and for research and development purposes.
What is the CAS number and chemical formula for 3,4-Pyridinedicarboxylic acid?
+
The CAS number for 3,4-Pyridinedicarboxylic acid is 490-11-9 and its empirical formula is C7H5NO4.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 3,4-Pyridinedicarboxylic acid with a minimum assay of 97%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should 3,4-Pyridinedicarboxylic acid be handled?
+
Handle 3,4-Pyridinedicarboxylic acid with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Avoid dust formation and inhalation, and ensure good ventilation. Refer to the Safety Data Sheet for detailed handling instructions. It is classified with hazards H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation).
How is 3,4-Pyridinedicarboxylic acid packed and shipped?
+
3,4-Pyridinedicarboxylic acid is carefully packed according to industry standards to ensure safe transport and is exported globally by Tech Serve Solutions.
How can I request a sample or quote for 3,4-Pyridinedicarboxylic acid?
+
To request a sample or a quote for 3,4-Pyridinedicarboxylic acid, please contact our sales team through the website or by calling us 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