4-Hydroxypyrimidine-5-carbonitrile
4-Hydroxypyrimidine-5-carbonitrile (CAS 4774-34-9) is a heterocyclic organic compound with the molecular formula C5H3N3O and a molecular weight of 121.10 g/mol. This pyrimidine derivative serves as a valuable building block in organic synthesis. It is particularly useful in the construction of more complex molecules within the pharmaceutical and chemical research sectors, owing to its reactive functional groups. TSS supplies this compound for laboratory and research applications.
- IUPAC
- 1,4-Dihydro-4-oxo-5-pyrimidinecarbonitrile,1,6-Dihydro-6-oxo-5-pyrimidinecarbonitrile

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of novel organic compounds. Its pyrimidine core and nitrile group offer versatile reaction sites for creating complex molecular architectures.
Pharmaceutical Research
Serves as a building block in the development of potential pharmaceutical agents. The pyrimidine scaffold is present in many biologically active molecules, making this compound a subject of interest in medicinal chemistry.
Heterocyclic Chemistry
Employed in studies and syntheses involving heterocyclic systems. Its structure contributes to the exploration of novel heterocyclic compounds with unique properties and applications.
| Molecular weight | 121.10 |
|---|---|
| Empirical formula | C5H3N3O |
| Assay | 97% |
| Storage temperature | 2-8°C |
| Melting point | 244-249 °C |


Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-41 |
| 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 4-Hydroxypyrimidine-5-carbonitrile used for?
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4-Hydroxypyrimidine-5-carbonitrile is primarily used as a building block in organic synthesis, particularly in pharmaceutical research and heterocyclic chemistry for the construction of complex molecules.
What is the CAS number and formula for 4-Hydroxypyrimidine-5-carbonitrile?
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The CAS number is 4774-34-9, and the empirical formula (Hill notation) is C5H3N3O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Hydroxypyrimidine-5-carbonitrile with a minimum assay of 97%. This product is intended for research and laboratory use and is not represented as USP, BP, EP, or any other pharmacopoeial grade.
How should 4-Hydroxypyrimidine-5-carbonitrile be handled safely?
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This compound is classified as Danger, presenting hazards H302 (Harmful if swallowed) and H318 (Causes serious eye damage). Appropriate personal protective equipment, including eye protection, should be worn. In case of contact, follow precautionary statements P280 and P305 + P351 + P338.
How is this chemical packed, shipped, and exported?
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4-Hydroxypyrimidine-5-carbonitrile is typically stored at 2-8°C. TSS exports fine chemicals globally, adhering to all relevant shipping and customs regulations. Please contact us for specific shipping details.
How can I request a sample or quote for 4-Hydroxypyrimidine-5-carbonitrile?
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To request a sample or a quotation for 4-Hydroxypyrimidine-5-carbonitrile, please use the contact form on our website or reach out to our sales department directly.
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