Methanol is a kind of liquid which is made up of molecules that are called "methyl" and "hydroxyl". It looks like water, but it's not safe to drink or touch because it can be very dangerous.
People use methanol in many ways. For example, it's used in cars and trucks to make them run. Methanol is also used in some kinds of paint, and it's used to clean things like windshields and airplane wings.
Even though methanol is useful, it can be very dangerous if you don't use it correctly. If you drink it, it can make you really sick and even cause you to die. If you get it on your skin, it can burn you. That's why it's very important to handle methanol very carefully and to always read the instructions before using it.