Toluene

Toluene (methylbenzene, C₇H₈) is a colorless, flammable liquid with a sweet, pungent, paint-thinner-like odor, commonly found in petroleum and used as an important industrial solvent, octane booster in gasoline, and feedstock for making other chemicals like TNT, dyes, and pharmaceuticals, though it's toxic if inhaled, ingested, or absorbed through skin, and can cause neurological issues