2-Hydroxy-4-methylpyrimidine hydrochloride
2-Hydroxy-4-methylpyrimidine hydrochloride (CAS: 5348-51-6, C5H6N2O · HCl) is a heterocyclic organic compound. With a molecular weight of 146.57 g/mol, it serves as a valuable building block in chemical synthesis. This pyrimidine derivative is primarily utilised in research and development settings for the creation of more complex molecules, particularly within the fields of medicinal chemistry and materials science. Its hydrochloride salt form often enhances solubility and stability.
- IUPAC
- 4-Methyl-2-pyrimidinol hydrochloride

Chemical Synthesis Intermediate
Serves as a key intermediate in the synthesis of various organic compounds, particularly those with a pyrimidine core. It is employed in multi-step reactions to construct more complex molecular architectures.
Heterocyclic Building Block
Utilised as a foundational building block in the development of novel heterocyclic compounds. Its structure allows for diverse functionalization in synthetic routes.
Research and Development
A common reagent in academic and industrial research laboratories for exploring new chemical pathways and developing novel compounds. Useful for investigating structure-activity relationships.
| Molecular weight | 146.57 |
|---|---|
| Empirical formula | C5H6N2O · HCl |
| Assay | 97% |
| Melting point | 243 °C (dec.)(lit.) |

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 |
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 2-Hydroxy-4-methylpyrimidine hydrochloride used for?
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2-Hydroxy-4-methylpyrimidine hydrochloride (CAS: 5348-51-6) is primarily used as a building block in chemical synthesis and for research and development purposes, particularly in the creation of novel heterocyclic compounds.
What is the CAS number and formula for 2-Hydroxy-4-methylpyrimidine hydrochloride?
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The CAS number is 5348-51-6 and the molecular formula is C5H6N2O · HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Hydroxy-4-methylpyrimidine hydrochloride with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 2-Hydroxy-4-methylpyrimidine hydrochloride be handled?
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Handle 2-Hydroxy-4-methylpyrimidine hydrochloride with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation, as it may cause skin, eye, and respiratory irritation (H315-H319-H335).
How is this chemical shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. This product is carefully packaged to ensure safe transit and is available for international export.
How can I request a quote or sample?
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To request a quote or a sample of 2-Hydroxy-4-methylpyrimidine hydrochloride, please contact our sales team through the website or direct inquiry channels.
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