This product contains 99.5% ethanol and .5% deionized water. Non-denatured 200- proof ethanol is pure ethyl alcohol. Ethanol, a main alcohol, is a crucial raw element in the production of a wide range of chemicals. It can be made from molasses by fermentation or from ethylene through hydration.During the transfer hydrogenation of carbonyl compounds in the presence of sodium hydroxide, it serves as both a hydrogen source and a reaction medium. Anhydrous grade solvents have a very low proportion of water and leave very little residue.