5-Chloro-2-(methylthio)pyrimidine-4-carboxylic acid
5-Chloro-2-(methylthio)pyrimidine-4-carboxylic acid (CAS: 61727-33-1; Formula: C6H5ClN2O2S; Mol. Wt.: 204.63) is a halogenated heterocyclic compound. It serves as a valuable building block in organic synthesis, particularly for the development of novel chemical entities in research and development settings. Its specific structure lends itself to diverse synthetic transformations.

Organic Synthesis Intermediate
This compound functions as a key intermediate in multi-step organic synthesis. Its pyrimidine core and functional groups allow for a range of chemical reactions, facilitating the construction of more complex molecules.
Research and Development
Used in R&D laboratories for the exploration of new chemical pathways and the creation of novel compounds. It is a useful reagent for medicinal chemistry and materials science research.
Heterocyclic Chemistry
As a substituted pyrimidine, it is employed in studies and synthesis involving heterocyclic ring systems. Its halogen and thioether substituents offer specific reactivity profiles for targeted modifications.
| Molecular weight | 204.63 |
|---|---|
| Empirical formula | C6H5ClN2O2S |
| Assay | 95% |
| Melting point | 165 °C (dec.) |

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) | 26-36/37 |
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 5-Chloro-2-(methylthio)pyrimidine-4-carboxylic acid used for?
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This compound is primarily used as a building block in organic synthesis and for research and development purposes in areas such as medicinal chemistry and materials science.
What are the CAS number and chemical formula?
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The CAS number is 61727-33-1 and the chemical formula is C6H5ClN2O2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product with an assay of 95%. This is a technical/research grade material; TSS does not represent it as USP, BP, or EP grade.
What are the main safety concerns for this chemical?
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This chemical is a Warning product and may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (type N95), eyeshields, and gloves, should be used when handling.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions, a specialist global supplier and exporter, ensures appropriate packaging for safe transport and export worldwide, adhering to all relevant regulations.
How can I request a sample or obtain a quote?
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To request a sample or obtain a quote for 5-Chloro-2-(methylthio)pyrimidine-4-carboxylic acid, please contact our sales department via the website or phone.
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