Orotic acid monohydrate
Orotic acid monohydrate (CAS 50887-69-9), with the empirical formula C5H4N2O4 · H2O and a molecular weight of 174.11 g/mol, is a crystalline solid. It is a pyrimidine derivative and a key intermediate in pyrimidine biosynthesis. This compound finds utility as a building block in chemical synthesis, particularly for heterocyclic compounds, and is employed in cell biology and nutrition research.
- IUPAC
- 2,6-Dioxo-1,2,3,6-tetrahydro-4-pyrimidinecarboxylic acid
- Synonyms
- 2,6-Dioxo-1,2,3,6-tetrahydro-4-pyrimidinecarboxylic acid

Chemical Synthesis
Orotic acid monohydrate serves as a valuable heterocyclic building block for the synthesis of various organic compounds. Its pyrimidine structure makes it suitable for constructing complex molecules.
Cell Biology Research
As a naturally occurring intermediate in nucleotide metabolism, orotic acid monohydrate is utilized in studies related to cell function and biochemistry. It plays a role in understanding pyrimidine pathways.
Nutrition Research
This compound is investigated for its role in metabolic processes and is a precursor for pyrimidine nucleotides, making it relevant for research in nutrition and biochemical pathways.
| Molecular weight | 174.11 |
|---|---|
| Empirical formula | C5H4N2O4 · H2O |
| Assay | 97% |
| Grade | purum |
| Melting point | >300 °C(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 Orotic acid monohydrate used for?
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Orotic acid monohydrate is used as a building block in chemical synthesis, for heterocyclic compounds, in cell biology research, and in nutrition research.
What are the CAS number and formula for Orotic acid monohydrate?
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The CAS number is 50887-69-9, and the empirical formula is C5H4N2O4 · H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Orotic acid monohydrate with a minimum assay of 97% (purum grade). We do not represent this product as USP, BP, or EP grade unless explicitly stated.
How should Orotic acid monohydrate be handled?
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Handle with appropriate personal protective equipment, including a dust mask type N95, eyeshields, and gloves. Avoid breathing dust. Ensure good ventilation. Refer to the safety data sheet for comprehensive handling instructions.
Is Orotic acid monohydrate a controlled substance?
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Based on the provided data, Orotic acid monohydrate (CAS 50887-69-9) is not classified as a controlled substance.
How is Orotic acid monohydrate shipped and exported?
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Tech Serve Solutions specialises in the global supply and export of fine chemicals, pharmaceutical intermediates, and laboratory reagents, ensuring compliant packaging and documentation for international shipment.
How can I request a quote or sample?
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To request a quote or sample for Orotic acid monohydrate, please contact our sales team through the website or by phone, providing your specific requirements.
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