Rubbing alcohol, also known as isopropyl alcohol, is a common antiseptic used for cleaning and disinfecting surfaces. It typically contains 70% isopropyl alcohol mixed with water, which makes it effective at killing germs and bacteria. People often use it for sanitizing skin before injections or minor medical procedures. In addition to its antiseptic properties, rubbing alcohol can also be used as a solvent for various substances. It is effective in removing sticky residues, cleaning electronics, and even as a stain remover for fabrics. However, it should be used with caution, as it is flammable and can irritate the skin.