Copper(I) trifluoromethanesulfonate toluene complex
Copper(I) trifluoromethanesulfonate toluene complex (CAS 48209-28-5) is a copper(I) salt of trifluoromethanesulfonic acid complexed with toluene. With the linear formula (CF3SO3Cu)2 · C6H5CH3 and a molecular weight of 517.37, this compound serves as a valuable reagent. It finds applications in organic synthesis, particularly in catalytic processes due to the versatile nature of copper(I) species in facilitating various chemical transformations.
- IUPAC
- Copper(I) triflate toluene complex,Cuprous trifluoromethanesulfonate toluene complex,Trifluoromethanesulfonic acid copper(I) salt toluene complex
- Synonyms
- Copper(I) triflate toluene complexCuprous trifluoromethanesulfonate toluene complexTrifluoromethanesulfonic acid copper(I) salt toluene complex

Catalysis in Organic Synthesis
This copper(I) complex acts as a catalyst in numerous organic reactions, including coupling reactions, cycloadditions, and polymerization. Its ability to coordinate with various organic substrates allows for efficient and selective bond formation.
Lewis Acid Catalysis
As a Lewis acid, Copper(I) trifluoromethanesulfonate toluene complex can activate carbonyl compounds and other electrophiles, promoting reactions such as Diels-Alder and Mukaiyama aldol reactions.
Precursor for Copper-Containing Materials
It can serve as a precursor for the synthesis of other copper-based materials or complexes with specific electronic or catalytic properties.
| Molecular weight | 517.37 |
|---|---|
| Linear formula | (CF3SO3Cu)2 · C6H5CH3 |
| Assay | ≥97.0% (RT) |


Hazard statements
- H228Flammable solid
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Flash point | 76 °C / 168.8 °F |
| Transport (UN / ADR) | UN 1325 4.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 11-36/37/38 |
| Safety statements (S) | 16-26-36 |
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 Copper(I) trifluoromethanesulfonate toluene complex used for?
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Copper(I) trifluoromethanesulfonate toluene complex is primarily used as a catalyst in organic synthesis, facilitating reactions like coupling, cycloaddition, and polymerization, and also acts as a Lewis acid in various transformations.
What is the CAS number and formula for Copper(I) trifluoromethanesulfonate toluene complex?
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The CAS number is 48209-28-5 and the linear formula is (CF3SO3Cu)2 · C6H5CH3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Copper(I) trifluoromethanesulfonate toluene complex with an assay of ≥97.0% (RT). TSS does not represent this product as USP, BP, EP, or other pharmacopoeial grades.
How should Copper(I) trifluoromethanesulfonate toluene complex be handled?
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Handling requires caution due to its flammability (H228) and irritant properties (H315, H319, H335). Use appropriate personal protective equipment including eyeshields, gloves, and a suitable respirator. Ensure adequate ventilation and keep away from heat and ignition sources.
Is Copper(I) trifluoromethanesulfonate toluene complex flammable?
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Yes, this compound is classified as flammable with hazard statement H228. Its flash point is 76 °C (168.8 °F), and it should be kept away from heat, sparks, and open flames.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions adheres to all regulations for the safe packing, shipping, and export of chemicals. This material is shipped under UN 1325, Hazard Class 4.1, Packing Group II.
How can I request a sample or quote?
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To request a sample or a quote, please contact our sales team via the website or by phone, providing the product name and CAS number (48209-28-5).
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