
2-Chloro-3-methylthiophene is an important heterocyclic compound used as a key intermediate in pharmaceutical and agrochemical synthesis. This halogenated thiophene derivative has a boiling point of 147-159°C (lit.), density of 1.211 g/mL at 25°C, and refractive index of 1.5395-1.5415. The compound is moisture-sensitive and should be stored under inert atmosphere at room temperature. As a versatile building block, it participates in various coupling reactions for constructing complex thiophene-containing molecules. Safety precautions include wearing protective gloves/eyewear due to its irritating properties (GHS Category 2).