There are several compounds in chemistry. Among them, alcohol is one such organic compound that contains hydroxyl radicals making bonds with carbon atoms. It is a kind of liquid that resembles much with water but it contains some properties which make it different from water. Its taste, smell, and feel are very much different from water. It is a volatile compound that feels cool if touched.
The reason behind it is it evaporates so fast and takes some water content from the skin with it. This is why it feels cold while rubbed on the skin. There are basically 4 kinds of alcohol, namely ethyl, denatured, isopropyl, and rubbing. The sources of alcohol can be classified as organic and synthetic sources, depending on the origin of the alcohol. Mostly from the grains, we can get organic everclear alcohol which we can consume in limited quantities and density.
Mostly alcohol is toxic and corrosive if consumed at a higher density. It is measured as proof. That means 200 percent proof alcohol means the compound is 100% pure and is not mixed with anything. This kind of alcohol is not used for consumption or normal use. It is so toxic that it kills microorganisms at once. This is why most alcohol is used in diluted form. Since it is used in different consumable items like drinks, cosmetics, and so on, you will not find any such item having a concentration of more than 50%. Thus you should also be very careful while using it.