Hydrochloric Acid is used across pharmaceutical, biochemical, and research settings as a strong acid and a hydrogen chloride donor. Its molecular formula is HCl, and it has a molecular weight of 36.46 g/mol. This compound is an inorganic gas and a member of the Chlorine compounds, inorganic group. It is supplied as a 1 liter solution in plastic packaging, making it convenient for lab use. Safety precautions include wearing safety goggles and gloves while handling.