5-Phospho-D-ribose 1-diphosphate pentasodium salt
5-Phospho-D-ribose 1-diphosphate pentasodium salt (CAS: 108321-05-7) is an organic compound with the formula C5H8Na5O14P3 and a molecular weight of 499.98. This pentasodium salt plays a crucial role in cellular metabolism, acting as a precursor in nucleotide biosynthesis and various enzymatic pathways. It is utilized in biochemical research, particularly in studies investigating metabolic processes and enzyme inhibition.
- IUPAC
- α-D-Ribosyl diphosphate 5-phosphate pentasodium salt,5-Phospho-α-D-ribosyl diphosphate,5-Phosphoribosyl 1-pyrophosphate pentasodium salt,P-Rib-PP,PRPP pentasodium salt
- Synonyms
- α-D-Ribosyl diphosphate 5-phosphate pentasodium salt5-Phospho-α-D-ribosyl diphosphate5-Phosphoribosyl 1-pyrophosphate pentasodium saltP-Rib-PPPRPP pentasodium salt

Biochemical Research
Utilized in studies assessing the relationship between muscarinic receptor cationic currents and internal calcium in smooth muscle cells. Its involvement in metabolic pathways makes it valuable for investigating enzyme functions and cellular processes.
Enzyme Inhibition Studies
Applied in research to investigate inhibitors of bacterial cell wall biosynthesis, specifically targeting enzymes like Mur D, contributing to the understanding of antimicrobial mechanisms.
Metabolic Pathway Analysis
Serves as a key metabolite in understanding complex metabolic pathways, including nucleotide biosynthesis and cofactor regeneration. Useful in metabolomics research.
| Molecular weight | 499.98 |
|---|---|
| Empirical formula | C5H8Na5O14P3 |
| Assay | ≥75% (enzymatic) |
| Storage temperature | −20°C |
| Application | Pentasodium salt has been used in a study to assess the relationship between the muscarinic receptor cationic current and internal calcium in guinea-pig jejunal smooth muscle cells. 1 It has also been used in a study to investigate inhibitors of the bacterial cell wall biosynthesis of the enzyme Mur D. 2 |

Hazard statements
- H371May cause damage to organs
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-68/20/21/22 |
| Safety statements (S) | 36/37 |
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 5-Phospho-D-ribose 1-diphosphate pentasodium salt used for?
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This compound is used in biochemical research, particularly for studies on metabolic pathways, enzyme inhibition (e.g., bacterial cell wall biosynthesis), and cellular ion transport mechanisms.
What are the CAS number and molecular formula?
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The CAS number is 108321-05-7, and the molecular formula is C5H8Na5O14P3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Phospho-D-ribose 1-diphosphate pentasodium salt with an assay of ≥75% (enzymatic). TSS does not represent this product as USP, BP, EP, or any pharmacopoeia grade; it is intended for research and laboratory use.
How should 5-Phospho-D-ribose 1-diphosphate pentasodium salt be handled?
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Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, faceshields, and gloves. Avoid dust formation and inhalation. Store at −20°C. This substance may cause damage to organs (H371).
Is this chemical packed, shipped, or exported globally by TSS?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and laboratory reagents, including 5-Phospho-D-ribose 1-diphosphate pentasodium salt.
How can I request a sample or quote?
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Please contact our sales department via the website or by phone to request a sample or a quotation for 5-Phospho-D-ribose 1-diphosphate pentasodium salt.
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