Category:
Other Specialized Reagents
CAS NO:
81294-10-2
Standard:
USP,
2-Ethynyl-5-methylthiophene (CAS 104897-56-1, C7H6OS) is a specialized heterocyclic building block. It is primarily synthesized via Sonogashira coupling of 5-methylthiophene with ethyne. This compound serves as a critical intermediate for constructing complex conjugated systems.
Store under inert atmosphere at temperatures below -20°C to prevent polymerization. Use appropriate PPE including gloves and goggles due to potential toxicity and flammability risks during handling.