Methyl 2-oxo-2H-pyran-3-carboxylate
Methyl 2-oxo-2H-pyran-3-carboxylate (CAS: 25991-27-9) is a heterocyclic organic compound with the molecular formula C7H6O4 and a molecular weight of 154.12 g/mol. This white crystalline solid serves as a valuable building block in organic synthesis, particularly within the fields of heterocyclic chemistry and the development of novel pharmaceutical intermediates. Its specific chemical structure allows for diverse derivatization pathways.
- IUPAC
- Methyl 2-pyrone-3-carboxylate

Organic Synthesis Intermediate
Utilised as a versatile intermediate in multi-step organic syntheses. Its pyranone core offers reactive sites for various chemical transformations, enabling the construction of complex molecular architectures.
Heterocyclic Chemistry
A key component in the synthesis of diverse heterocyclic compounds. It is frequently employed in research laboratories exploring new pyran derivatives and related fused ring systems.
Pharmaceutical Research
Serves as a precursor or building block in the discovery and development of new pharmaceutical agents. Its structure is relevant for creating molecules with potential biological activity.
| Molecular weight | 154.12 |
|---|---|
| Empirical formula | C7H6O4 |
| Assay | 98% |
| Boiling point | 146-148 °C/0.75 mmHg(lit.) |
| Melting point | 75-77 °C(lit.) |
| 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 Methyl 2-oxo-2H-pyran-3-carboxylate used for?
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Methyl 2-oxo-2H-pyran-3-carboxylate is primarily used as a building block and intermediate in organic synthesis, particularly in heterocyclic chemistry and pharmaceutical research.
What is the CAS number and formula for Methyl 2-oxo-2H-pyran-3-carboxylate?
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The CAS number is 25991-27-9 and the empirical formula is C7H6O4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methyl 2-oxo-2H-pyran-3-carboxylate with a minimum assay of 98%. This product is typically considered a technical or research grade and is not represented as USP, BP, or EP.
What are the main safety and handling considerations?
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Handling requires personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. It carries a WGK Germany rating of 3, indicating significant hazard.
How is this chemical shipped and exported?
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Tech Serve Solutions is an experienced global supplier and exporter of fine chemicals, adhering to all necessary regulations for safe and compliant international shipping.
How can I request a sample or quote for Methyl 2-oxo-2H-pyran-3-carboxylate?
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To request a sample or quote, please contact our sales department via the website or provide your details through the 'Enquire' button.
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