4,6-Dichloro-2-(methylsulfonyl)pyrimidine
4,6-Dichloro-2-(methylsulfonyl)pyrimidine (CAS: 4489-34-3) is a key organic compound with the molecular formula C5H4Cl2N2O2S and a molecular weight of 227.07 g/mol. It serves as a versatile building block in chemical synthesis, particularly within the realm of heterocyclic chemistry. Its structure, featuring a pyrimidine core with specific chlorine and methylsulfonyl substituents, makes it valuable for constructing more complex molecules used in research and development.
- Synonyms
- C5H4Cl2N2O2S

Heterocyclic Synthesis
This compound is a functionalised pyrimidine, enabling its use as a synthon in the construction of diverse heterocyclic scaffolds. The reactive sites allow for further derivatisation in multi-step synthetic routes.
Pharmaceutical Intermediates
As a building block, 4,6-Dichloro-2-(methylsulfonyl)pyrimidine can be employed in the synthesis pathway of potential drug candidates. Its pyrimidine core is a common feature in many biologically active molecules.
Agrochemical Research
The unique substitution pattern of this pyrimidine derivative may lend itself to the development of novel agrochemicals, such as herbicides or fungicides, through targeted chemical modification.
Materials Science
Research may explore the incorporation of this pyrimidine unit into advanced materials, leveraging its specific electronic and structural properties for applications in areas like organic electronics.
| Molecular weight | 227.07 |
|---|---|
| Empirical formula | C5H4Cl2N2O2S |

Hazard statements
- H302Harmful if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36 |
| 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 4,6-Dichloro-2-(methylsulfonyl)pyrimidine used for?
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4,6-Dichloro-2-(methylsulfonyl)pyrimidine is primarily used as a versatile building block in chemical synthesis, particularly for the creation of complex heterocyclic compounds relevant to pharmaceutical and agrochemical research.
What is the CAS number and molecular formula for this chemical?
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The CAS number is 4489-34-3, and the molecular formula is C5H4Cl2N2O2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound as a research chemical. The specific assay or purity is not detailed in the provided data; therefore, TSS does not represent it as USP, BP, or EP grade.
How should 4,6-Dichloro-2-(methylsulfonyl)pyrimidine be handled?
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This compound is classified with a Warning signal word and is harmful if swallowed (H302) and causes serious eye irritation (H319). Wear appropriate personal protective equipment, including gloves, eye protection, and protective clothing. Ensure good ventilation. In case of eye contact, rinse cautiously with water for several minutes and remove contact lenses if present and easy to do. Continue rinsing.
Is this chemical available for export and how is it shipped?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals. This product is typically supplied in standard laboratory packaging suitable for research chemicals and exported according to international shipping regulations for hazardous materials.
How can I request a sample or a quote?
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To request a sample or a quote for 4,6-Dichloro-2-(methylsulfonyl)pyrimidine, please contact the Tech Serve Solutions sales department through the website's inquiry form or by calling our sales line.
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