Trimethyloxonium tetrafluoroborate
ALDRICH/281077 - 95%
Synonym: Trimethyloxonium fluoroborate
CAS Number: 420-37-1
Empirical Formula (Hill Notation): C3H9BF4O
Molecular Weight: 147.91
EC Number: 206-994-4
MDL Number: MFCD00011798
Linear Formula: (CH3)3O(BF4)
Product Type: Chemical
| assay | 95% |
| form | solid |
| functional group | ether |
| InChI | 1S/C3H9O.BF4/c1-4(2)3;2-1 |
| InChI key | CZVZBKHWOFJNCR-UHFFFAOYSA |
| Quality Level | 200 ![]() |
| SMILES string | C[O+](C)C.F[B-](F)(F)F |
| storage temp. | −20°C |
| Application: | Reagent for the methylation of hydroxyl groups recently used in a complex, multistep synthesis directed towards spirastrellolide, a marine natural product. |
| General description: | Trimethyloxonium tetrafluoroborate can be used as a methylating agent for the methylation of hydroxyl/carboxyl functional groups. It is capable of methylating polyfunctional carboxylic acids. It is also used as a catalyst for the polymerization of cyclic sulfides and ethers. |
| Packaging: | 1, 10 g in poly bottle |
| Symbol | GHS05 |
| Signal word | Danger |
| Hazard statements | H314 |
| Precautionary statements | P280 - P305 + P351 + P338 - P310 |
| Hazard Codes | C |
| Risk Statements | 14-34 |
| Safety Statements | 26-36/37/39-43-45 |
| RIDADR | UN 3261 8 / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH014 |
| Purity | 95% |
| Storage Temp. | −20°C |
| UNSPSC | 12352107 |


