L-Dihydroorotic acid
L-Dihydroorotic acid (CAS: 5988-19-2), with the molecular formula C5H6N2O4 and a molecular weight of 158.11 g/mol, is a key intermediate in pyrimidine biosynthesis. This compound plays a crucial role in cellular metabolism, particularly within nucleotide synthesis pathways. It is widely utilised in biochemical research for studying metabolic pathways and related cellular functions. TSS supplies L-Dihydroorotic acid with a purity of ≥99%.
- IUPAC
- 2,6-Dioxohexahydro-4-pyrimidinecarboxylic acid,L-Hydroorotic acid,Dihydro-L-orotic acid
- Synonyms
- 2,6-Dioxohexahydro-4-pyrimidinecarboxylic acidL-Hydroorotic acidDihydro-L-orotic acid

Biochemical Research
L-Dihydroorotic acid serves as a valuable reagent in biochemical research, enabling studies into metabolic pathways, especially those related to pyrimidine and nucleotide synthesis. Its use aids in understanding cellular energy production and genetic material formation.
Metabolic Pathway Studies
As a natural intermediate in the de novo synthesis of pyrimidines, this compound is essential for researchers investigating metabolic flux and enzyme activity within these critical biological processes.
Nucleotide Synthesis Research
Researchers utilize L-Dihydroorotic acid to explore the intricate mechanisms of nucleotide biosynthesis, a fundamental process for DNA and RNA formation and cellular replication.
| Molecular weight | 158.11 |
|---|---|
| Empirical formula | C5H6N2O4 |
| Assay | ≥99% |
| Melting point | 254-255 °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 L-Dihydroorotic acid used for?
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L-Dihydroorotic acid is primarily used in biochemical research for studying metabolic pathways, particularly pyrimidine and nucleotide biosynthesis.
What is the CAS number and formula for L-Dihydroorotic acid?
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The CAS number for L-Dihydroorotic acid is 5988-19-2, and its molecular formula is C5H6N2O4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies L-Dihydroorotic acid with a purity of ≥99%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated.
What are the safety precautions for handling L-Dihydroorotic acid?
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L-Dihydroorotic acid is a Warning substance that may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment, including a dust mask type N95, eyeshields, and gloves. Ensure good ventilation.
Is L-Dihydroorotic acid a controlled substance?
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The provided data does not indicate that L-Dihydroorotic acid is a controlled substance.
How is L-Dihydroorotic acid packaged and shipped?
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TSS exports L-Dihydroorotic acid globally, ensuring appropriate packaging for safe transport and compliance with international shipping regulations.
How can I request a sample or quote for L-Dihydroorotic acid?
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Please contact our sales team via the website or direct email to request a sample or a quotation for L-Dihydroorotic acid.
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