1. Dye industry: As a key intermediate in indigo dye.
2. Pharmaceutical synthesis: Used to prepare 3-lactam antibiotics or other drug precursors.
3. Other applications: May involve the synthesis of pesticides or fine chemicals (not explicitly mentioned but speculated)
storage requirements
Environment: protected from light, sealed, and room temperature (some recommendations for refrigeration at 2-8℃).
Protection: Protect with an inert gas (such as argon) to prevent oxidation.
Safety: Keep away from fire sources and strong oxidants, and wear protective equipment during operation.