4-Methylpyridine-2-carboxylic acid
4-Methylpyridine-2-carboxylic acid (CAS: 4021-08-3) is a heterocyclic organic compound with the molecular formula C7H7NO2 and a molecular weight of 137.14 g/mol. It functions as a valuable building block in chemical synthesis, particularly within the realm of heterocyclic chemistry. This compound offers a pyridine core functionalised with both a methyl group and a carboxylic acid moiety, enabling diverse chemical transformations and the construction of more complex molecular architectures.

Organic Synthesis Intermediate
Serves as a key intermediate in the synthesis of various organic molecules. Its structure allows for reactions at both the carboxylic acid group and potentially the pyridine ring or methyl group under specific conditions.
Heterocyclic Chemistry
Utilised in the construction of more complex heterocyclic compounds. The pyridine scaffold is a common feature in many biologically active molecules and advanced materials.
Research and Development
Employed in academic and industrial research laboratories for exploring new synthetic routes and developing novel chemical entities. Its availability as a building block facilitates the exploration of structure-activity relationships.
| Molecular weight | 137.14 |
|---|---|
| Empirical formula | C7H7NO2 |
| Assay | 97% |
| Melting point | 137-141 °C |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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-Methylpyridine-2-carboxylic acid used for?
+
4-Methylpyridine-2-carboxylic acid is primarily used as a building block in organic synthesis and heterocyclic chemistry for the development of more complex molecules in research and development settings.
What is the CAS number and molecular formula for 4-Methylpyridine-2-carboxylic acid?
+
The CAS number is 4021-08-3 and the molecular formula is C7H7NO2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 4-Methylpyridine-2-carboxylic acid with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 4-Methylpyridine-2-carboxylic acid be handled?
+
Handle with care using appropriate personal protective equipment, including eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter. This compound is classified with GHS07 and carries the hazard statement H319, indicating it causes serious eye irritation. Store in a well-ventilated area, following precautionary statement P305 + P351 + P338.
Is 4-Methylpyridine-2-carboxylic acid a controlled substance?
+
The provided data does not indicate that 4-Methylpyridine-2-carboxylic acid is a controlled substance.
How is 4-Methylpyridine-2-carboxylic acid packed and shipped?
+
Tech Serve Solutions exports fine chemicals globally. Specific packaging details will be provided upon inquiry, adhering to international shipping regulations for chemical compounds.
How can I request a sample or quote for 4-Methylpyridine-2-carboxylic acid?
+
To request a sample or quote, please contact the Tech Serve Solutions sales team via our website or designated contact channels, providing the product name and CAS number (4021-08-3).
▶ 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