Tetramethyltetraselenafulvalene
Tetramethyltetraselenafulvalene (CAS: 55259-49-9, C10H12Se4, MW: 448.04) is a selenium-containing organic compound. It is primarily utilised as a building block in chemical synthesis and research, particularly within the realm of organic materials science due to its unique selenium-based structure. Its specific properties make it a valuable intermediate for developing novel functional molecules and conducting advanced chemical investigations.
- IUPAC
- TMTSF

Organic Synthesis Intermediate
Tetramethyltetraselenafulvalene serves as a key intermediate in the synthesis of complex organic molecules. Its selenium content allows for the construction of novel selenium-containing compounds with potentially unique electronic or optical properties.
Materials Science Research
This compound is investigated for its potential applications in materials science, particularly in the development of organic conductors and semiconductors. Its structure is analogous to well-known charge-transfer salts, suggesting similar electronic behaviours.
Selenium Compound Development
As a readily available source of selenium in a specific organic framework, TMTSF is used in research exploring new selenium-based chemical entities and their properties.
| Molecular weight | 448.04 |
|---|---|
| Empirical formula | C10H12Se4 |
| Assay | 97% |
| Grade | purum |
| Storage temperature | 2-8°C |
| Melting point | 273-275 °C (dec.)(lit.) |



Hazard statements
- H301Toxic if swallowed
- H373May cause damage to organs through prolonged exposure
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P301IF SWALLOWED
- P311Call a POISON CENTER or doctor
- P501Dispose of contents and container per local regulations
| Transport (UN / ADR) | UN 3283 6.1/PG 2 |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 23/25-33-50/53 |
| Safety statements (S) | 20/21-28-45-60-61 |
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 Tetramethyltetraselenafulvalene (TMTSF) used for?
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Tetramethyltetraselenafulvalene (CAS: 55259-49-9) is primarily used as a building block in organic synthesis and for research in materials science, particularly in the development of novel selenium-containing compounds and organic conductors.
What is the CAS number and formula for Tetramethyltetraselenafulvalene?
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The CAS number for Tetramethyltetraselenafulvalene is 55259-49-9, and its empirical formula is C10H12Se4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tetramethyltetraselenafulvalene with a purity of 97% (purum grade). We do not represent this product as USP, BP, or EP grade.
How should Tetramethyltetraselenafulvalene be handled?
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Tetramethyltetraselenafulvalene is classified as toxic if swallowed or inhaled and may cause damage to organs through prolonged or repeated exposure (H301 + H331-H373). It is also very toxic to aquatic life with long-lasting effects (H410). Handle with extreme caution in a well-ventilated area, using appropriate personal protective equipment, and avoid release into the environment.
Is Tetramethyltetraselenafulvalene a controlled substance?
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Based on the provided data, there is no indication that Tetramethyltetraselenafulvalene is a controlled substance. However, due diligence is recommended regarding local regulations.
How is Tetramethyltetraselenafulvalene packed and shipped?
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Tetramethyltetraselenafulvalene is typically packed securely for safe transport. As an exporter, Tech Serve Solutions ensures compliance with all relevant shipping regulations for hazardous materials, including the UN 3283 classification for toxic solids.
How can I request a sample or quote for Tetramethyltetraselenafulvalene?
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To request a sample or quote for Tetramethyltetraselenafulvalene, please contact our sales team through the website or by telephone, providing your contact details and the quantity required.
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