1. Use for organic synthesis.

2. It is widely used and is one of the strongest organic acids known. It is a versatile synthetic tool. It has strong corrosive and hygroscopic properties and is widely used in medicine, chemical, and other industries. Such as nucleosides, antibiotics, steroids, proteins, glycosides, vitamin synthesis, silicone rubber modification, etc.

3. Use as Isomerization and alkylation catalysts. Preparation of 2,3-dihydro-2-indanone, tetralone. Remove glycosides from glycoproteins.