The Trimethyloxonium tetrafluoroborate, with the CAS registry number 420-37-1, is also known as Oxonium, trimethyl-, tetrafluoroborate(1-). It belongs to the product categories of (Classes of Boron Compounds); Iodonium Sulfonium & Oxonium Compounds; Oxonium Compounds; Tetrafluoroborates; Alkyl Transfer; C-X Bond Formation (Non-Halogen); Synthetic Reagents; Halometallate Salts. Its EINECS registry number is 206-994-4. This chemical's molecular formula is C₃H₉BF₄O and molecular weight is 147.91. What's more, its IUPAC name is the same with its product name. This chemical can be prepared by Boron fluoride monoetherate with Epoxy chloropropane. This reaction needs reagent dimethyl ether and solvent dichloromethane. It is used to produce ocean natural products and used as strong methylation reagents.

Physical properties about Trimethyloxonium tetrafluoroborate are: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 0 Å².

When you are dealing with this chemical, you should be very careful. This chemical may destroy living tissue on contact. It reacts violently with water and may cause burns. Therefore, you should wear suitable protective clothing, gloves and eye/face protection. In case of contacting with eyes, you should rinse immediately with plenty of water and seek medical advice. And in case of accident or if you feel unwell seek medical advice immediately.

You can still convert the following datas into molecular structure:
(1) SMILES: F[B-](F)(F)F.[O+](C)(C)C
(2) InChI: InChI=1S/C3H9O.BF4/c1-4(2)3;2-1(3,4)5/h1-3H3;/q+1;-1
(3) InChIKey: CZVZBKHWOFJNCR-UHFFFAOYSA-N