Pentathiodiphosphorus(V) acid-P,P′-bis(pyridinium betaine)
Pentathiodiphosphorus(V) acid-P,P′-bis(pyridinium betaine) (CAS 16610-51-8) is a unique organosulfur and phosphorus compound with the molecular formula C10H10N2P2S5 and a molecular weight of 380.47. Its structure features a bis(pyridinium betaine) moiety linked to a pentathiodiphosphorus core. This compound serves as a valuable reagent in chemical synthesis and finds applications within catalysis and inorganic chemistry, particularly in the realm of phosphine compound and ligand development.
- IUPAC
- 1,1′-[Thiobis(mercaptophosphinothioylidene)]bispyridinium, bis(inner salt),P4S10-Pyridine complex
- Synonyms
- 1,1′-[Thiobis(mercaptophosphinothioylidene)]bispyridinium, bis(inner salt),P4S10-Pyridine complex

Catalysis and Inorganic Chemistry
This compound can be employed as a component in catalytic systems or as a precursor for novel inorganic materials. Its phosphorus and sulfur functionalities offer unique coordination possibilities.
Chemical Synthesis
It acts as a specialized building block in organic and inorganic synthesis. The distinct P-S framework allows for the introduction of specific structural motifs into target molecules.
Phosphine Ligand Precursor
The molecule can be utilized in the development of novel phosphine ligands, which are crucial in homogeneous catalysis for various organic transformations.
| Molecular weight | 380.47 |
|---|---|
| Empirical formula | C10H10N2P2S5 |
| Melting point | 190-210 °C |
| Transport (UN / ADR) | UN 3335 |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 Pentathiodiphosphorus(V) acid-P,P′-bis(pyridinium betaine) used for?
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Pentathiodiphosphorus(V) acid-P,P′-bis(pyridinium betaine) is primarily used in chemical synthesis, catalysis, and inorganic chemistry. It can serve as a building block or precursor for phosphine compounds and ligands.
What are the CAS number and formula for this compound?
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The CAS number is 16610-51-8 and the empirical formula is C10H10N2P2S5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with the specified purity as indicated on the Certificate of Analysis. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should Pentathiodiphosphorus(V) acid-P,P′-bis(pyridinium betaine) be handled?
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According to the supplied safety data, this compound has a WGK Germany classification of 3, indicating it is hazardous to water. Appropriate personal protective equipment should be worn during handling, and it should be stored in a well-ventilated area away from incompatible materials.
Is this product controlled or scheduled?
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The provided data does not indicate that this compound is a controlled or scheduled substance.
How is this chemical shipped and exported?
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Tech Serve Solutions exports this chemical globally, adhering to all relevant international shipping and customs regulations for hazardous materials, including UN 3335.
How can I request a quote or sample?
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To request a quote or sample of Pentathiodiphosphorus(V) acid-P,P′-bis(pyridinium betaine), please contact our sales department via the website or direct email, providing your specific requirements and shipping details.
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