1. Lithium Batteries
Used as an electrolyte additive. It forms a stable solid electrolyte interface film on the negative electrode surface during the first charge cycle, which helps improve the battery’s high-temperature resistance, prevent gas expansion, and enhance safety and cycle life.

2. Pharmaceutical Industry
Used as a key pharmaceutical intermediate. For example, it is used in the synthesis of sulfobutyl ether-β-cyclodextrin, a derivative that significantly increases the water solubility and stability of poorly soluble drugs.

3. Surfactants and Dyes
Used as an intermediate for surfactants and color dye sensitizers. Through its reactions, surfactants or dye molecules with good water solubility and specific properties can be prepared.

4. Electronic Plating
Used as a starting material for the synthesis of plating intermediates. Used in the electroplating process of electronic components, it helps to obtain coatings with superior performance.

5. Chemical Industry and New Materials
• Photosensitive materials: Used as an intermediate for photosensitive materials.
• Fuel cells: Used for functionalizing carbon nanotubes and preparing cross-linked composite electrolyte membranes to improve fuel cell performance.
• Organic synthesis catalysts: Used to prepare Brønsted acid catalysts such as 4-(succinimido)-1-butanesulfonic acid, which catalyze various organic synthesis reactions.

6. Scientific Research
Used in scientific research for the synthesis of conjugated polymers (such as polybetaines), the development of detection methods (such as determining trace impurities in drug carriers), and the preparation of functional ionic liquids.