1,8-Octanediphosphonic acid
1,8-Octanediphosphonic acid (CAS 5943-66-8), with the molecular formula C8H20O6P2 and a molecular weight of 274.19 g/mol, is a phosphonic acid derivative. It functions as a valuable building block in chemical synthesis and materials science. Its properties make it suitable for applications in micro/nanoelectronics and self-assembly processes.
- IUPAC
- 1,8-Diphosphonooctane,1,8-octanediylbis-phosphonic acid,C8BPA
- Synonyms
- 1,8-Diphosphonooctane1,8-octanediylbis-phosphonic acidC8BPA

Chemical Synthesis
1,8-Octanediphosphonic acid serves as an organic building block for synthesising more complex molecules. It is particularly useful in reactions involving phosphonic acid functionalities.
Materials Science
This compound can be employed in the development of advanced materials. Its structure lends itself to applications requiring specific surface properties or molecular organisation.
Micro/Nanoelectronics
In micro and nanoelectronics, phosphonic acids like 1,8-Octanediphosphonic acid can be used for surface modification and creating functional interfaces due to their strong binding capabilities.
Self-Assembly
The molecule's structure is conducive to self-assembly processes, enabling the formation of organised structures at the molecular level for various technological applications.
| Molecular weight | 274.19 |
|---|---|
| Empirical formula | C8H20O6P2 |
| Assay | 97% |
| Melting point | 180-185 °C |

Hazard statements
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- 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) | 41 |
| Safety statements (S) | 26-39 |
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 1,8-Octanediphosphonic acid used for?
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1,8-Octanediphosphonic acid is used as a building block in chemical synthesis, in materials science, for micro/nanoelectronics applications, and in self-assembly processes.
What is the CAS number and formula for 1,8-Octanediphosphonic acid?
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The CAS number is 5943-66-8 and the empirical formula is C8H20O6P2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,8-Octanediphosphonic acid with a minimum purity of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety and handling precautions for 1,8-Octanediphosphonic acid?
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1,8-Octanediphosphonic acid is classified as Danger (GHS05) and can cause serious eye damage (H318). Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, must be used. Handle in a well-ventilated area and avoid dust formation. Ensure correct procedures for P280, P305 + P351 + P338 are followed.
How is 1,8-Octanediphosphonic acid packaged and exported?
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Tech Serve Solutions offers 1,8-Octanediphosphonic acid in various packaging sizes suitable for research and industrial needs. As a global supplier, we handle all aspects of export documentation and logistics.
How can I request a sample or quote for 1,8-Octanediphosphonic acid?
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To request a sample or a quotation for 1,8-Octanediphosphonic acid, please contact our sales department via the website or by phone, providing your specific requirements.
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