4-Methylpyrimidine
4-Methylpyrimidine (CAS: 3438-46-8), with the chemical formula C5H6N2 and a molecular weight of 94.11 g/mol, is a heterocyclic organic compound. It serves as a valuable building block in chemical synthesis, particularly within the realm of heterocyclic chemistry. Its properties make it suitable for research and development applications where pyrimidine derivatives are required.

Chemical Synthesis Intermediate
4-Methylpyrimidine is utilised as a key intermediate in the synthesis of more complex organic molecules. It is particularly relevant in the construction of novel pharmaceutical agents and agrochemicals that incorporate the pyrimidine scaffold.
Heterocyclic Chemistry Research
This compound is employed in academic and industrial research focused on heterocyclic chemistry. Its structure allows for various functionalisation reactions, enabling the exploration of new pyrimidine-based compounds.
Organic Building Block
As a C4 to C5 building block, 4-Methylpyrimidine provides a foundational structure for developing diverse chemical entities. It is a useful reagent for introducing the methylpyrimidine moiety into target molecules.
| Molecular weight | 94.11 |
|---|---|
| Empirical formula | C5H6N2 |
| Assay | 97% |
| Boiling point | 141-142 °C(lit.) |
| Density | 1.031 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.496(lit.) |

Hazard statements
- H226Flammable liquid and vapour
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 40 °C / 104 °F |
| Transport (UN / ADR) | UN 1993C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
| Safety statements (S) | 16 |
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-Methylpyrimidine used for?
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4-Methylpyrimidine is primarily used as a building block in chemical synthesis and for research in heterocyclic chemistry, enabling the creation of more complex pyrimidine derivatives.
What are the CAS number and chemical formula for 4-Methylpyrimidine?
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The CAS number for 4-Methylpyrimidine is 3438-46-8, and its chemical formula is C5H6N2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Methylpyrimidine with a minimum assay of 97%. We do not represent this product as USP, BP, EP, or for nutraceutical/food applications.
What are the primary safety hazards associated with 4-Methylpyrimidine?
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4-Methylpyrimidine is a flammable liquid and vapour (H226). Appropriate personal protective equipment, including eyeshields, faceshields, and suitable gloves, should be used when handling. Ensure adequate ventilation and keep away from heat and ignition sources.
How is 4-Methylpyrimidine packed and shipped?
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4-Methylpyrimidine is typically packed in UN-approved containers suitable for flammable liquids. We export globally, adhering to all relevant transportation regulations for hazardous materials.
How can I request a quote or sample for 4-Methylpyrimidine?
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To request a quote or sample, please contact our sales team via the website or direct email, providing your specific requirements.
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