Cerium trifluoromethanesulfonate
Cerium trifluoromethanesulfonate (CAS: 698999-65-4) is a cerium salt of trifluoromethanesulfonic acid with the chemical formula Cen(CF3SO3)x H2O. Supplied by Tech Serve Solutions with an assay of 19-23% Ce basis, this compound is recognised for its utility as an efficient catalyst in organic synthesis, particularly in reactions involving epoxide ring-opening, where it demonstrates high regio- and stereoselectivity. It is suitable for catalysis and chemical synthesis applications.
- IUPAC
- Cerium triflate

Catalyst for Epoxide Ring Opening
Cerium trifluoromethanesulfonate serves as an effective catalyst for the ring opening of epoxides. This reaction proceeds with high regio- and stereoselectivity, making it valuable in complex synthetic pathways.
Inorganic Chemistry Reagent
As a cerium compound, it finds application within inorganic chemistry research and development. Its properties are leveraged in studies involving cerium coordination and reactivity.
Chemical Synthesis
This triflate salt is employed in various chemical synthesis processes. Its catalytic activity facilitates specific transformations, contributing to the efficient construction of target molecules.
| Linear formula | Cen(CF3SO3) x H2O |
|---|---|
| Assay | 19-23% Ce basis |
| Application | Efficient catalyst for the ring opening of epoxides, providing high regio- and stereoselectivity.1 |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- 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) | 36/37/38 |
| Safety statements (S) | 26 |
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 Cerium trifluoromethanesulfonate used for?
+
Cerium trifluoromethanesulfonate is primarily used as an efficient catalyst for the ring opening of epoxides, providing high regio- and stereoselectivity. It is also utilised in broader chemical synthesis and inorganic chemistry applications.
What is the CAS number and chemical formula for Cerium trifluoromethanesulfonate?
+
The CAS number for Cerium trifluoromethanesulfonate is 698999-65-4, and its chemical formula is Cen(CF3SO3)x H2O.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Cerium trifluoromethanesulfonate with an assay of 19-23% Ce basis. This product is intended for research and technical applications and is not represented as USP, BP, EP, or other pharmacopoeia grades.
What are the safety considerations when handling Cerium trifluoromethanesulfonate?
+
Cerium trifluoromethanesulfonate is classified as a Warning substance with hazard statements H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Handling requires appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Ensure good ventilation and avoid breathing dust. In case of contact, follow precautionary statements P261, P305, P351, and P338.
Is Cerium trifluoromethanesulfonate a controlled substance?
+
Based on the provided data, Cerium trifluoromethanesulfonate is not indicated as a controlled substance.
How is Cerium trifluoromethanesulfonate packed and exported?
+
Tech Serve Solutions packs and exports chemicals adhering to all relevant international shipping regulations to ensure safe transit. Specific packaging details can be provided upon request.
How can I request a sample or quote for Cerium trifluoromethanesulfonate?
+
To request a sample or obtain a quote for Cerium trifluoromethanesulfonate, please contact our sales team via the website or provide your inquiry details through the product page.
▶ Related products

Benzeneruthenium(II) chloride dimer
Ru2(C6H6)2Cl4
Catalysis & Inorganic
Benzoylferrocene
C17H14FeO
Catalysis & Inorganic
Benzyldiphenylphosphine
C6H5CH2P(C6H5)2
Catalysis & Inorganic
Beryllium
Be
Catalysis & Inorganic
Beryllium oxide
BeO
Catalysis & Inorganic![Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer — chemical structure, CAS 12257-42-0; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F12257-42-0.png&w=3840&q=75)
Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer
Catalysis & Inorganic
![Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo — chemical structure, CAS 1228149-03-8; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1228149-03-8.png&w=3840&q=75)
Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo
1-d:1′
Catalysis & Inorganic![Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride (C16H20ClN3Ni) — chemical structure, CAS 1033772-47-2; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1033772-47-2.png&w=3840&q=75)
Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride
C16H20ClN3Ni
Catalysis & Inorganic▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis