4-Methyl-2-(2-pyrazinyl)thiazole-5-carboxylic acid
4-Methyl-2-(2-pyrazinyl)thiazole-5-carboxylic acid (CAS: 216959-92-1) is a heterocyclic organic compound with the molecular formula C9H7N3O2S and a molecular weight of 221.24 g/mol. This thiazole derivative serves as a valuable building block in organic synthesis. It is primarily utilised in the development of novel chemical entities and in research laboratories for synthetic chemistry applications, contributing to the advancement of pharmaceutical and material science research.
- IUPAC
- 2-(2-Pyrazinyl)-4-methylthiazole-5-carboxylic acid
- Synonyms
- 2-(2-Pyrazinyl)-4-methylthiazole-5-carboxylic acid

Organic Synthesis Intermediate
This compound acts as a key intermediate in the synthesis of more complex organic molecules. Its functional groups allow for diverse chemical transformations, making it a versatile component in multi-step synthetic pathways.
Pharmaceutical Research
As a heterocyclic building block, it is employed in medicinal chemistry for the design and synthesis of potential drug candidates. Its structure may be incorporated into molecules targeting various biological pathways.
Materials Science
The unique structure of 4-Methyl-2-(2-pyrazinyl)thiazole-5-carboxylic acid may lend itself to applications in the development of novel functional materials. Researchers may explore its properties in areas such as organic electronics or advanced polymers.
| Molecular weight | 221.24 |
|---|---|
| Empirical formula | C9H7N3O2S |
| Assay | 97% |
| Melting point | 250-255 °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 4-Methyl-2-(2-pyrazinyl)thiazole-5-carboxylic acid used for?
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4-Methyl-2-(2-pyrazinyl)thiazole-5-carboxylic acid is primarily used as a building block in organic synthesis and in pharmaceutical research for the development of new chemical entities.
What are the CAS number and molecular formula?
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The CAS number for this compound is 216959-92-1, and its empirical formula is C9H7N3O2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of 97%. As this is not specified as a pharmacopoeia grade, it is supplied for research and development or technical use, and TSS does not represent it as USP, BP, or EP grade.
How should this chemical be handled?
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This compound is classified as a Warning with hazards including H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Handle with appropriate personal protective equipment in a well-ventilated area, avoiding contact with skin, eyes, and clothing. Ensure proper ventilation to avoid dust inhalation.
Is this compound a controlled substance?
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The provided data does not indicate that 4-Methyl-2-(2-pyrazinyl)thiazole-5-carboxylic acid is a controlled substance.
How is this chemical packed and shipped?
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Tech Serve Solutions packs and ships fine chemicals, pharmaceutical intermediates, and laboratory reagents globally, adhering to all necessary regulations for safe transport.
How can I request a sample or quote?
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To request a sample or a quotation, please contact our sales team through the provided channels on the Tech Serve Solutions website.
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