Drug intermediates:
1. Used for synthesizing antiviral drugs (such as the skeletal structure of nucleoside analogues).
2. Build diabetes drugs (such as the rigid core structure of SGLT2 inhibitors).
3. Participate in the preparation of contrast agents (carriers containing iodine compounds to improve water solubility).

Polymer monomer:
As a rigid cyclic structure, it is used for synthesizing biodegradable polymers such as polyester or polycarbonate.
2. Preparation of chiral materials (such as additives for liquid crystals or optical devices).

Food and cosmetics
Sweetener precursor: Low calorie sweeteners (similar to derivatives of isosorbide) can be generated through modification.
Moisturizing agent: used in small amounts in cosmetics (but not as common as mannitol).