Carbon tetrachloride (CAS No. 56‑23‑5; CCl₄; mw: 153.82 g/mol) is a colorless, nonpolar, volatile liquid (mp: −23 °C, bp: ~76–77 °C) with ≥ 99.5% purity in lab-grade form. Slightly soluble in water, it’s primarily used in spectroscopy, synthesis, and analytical applications.