Ethanol has been with us since ancient man first learned to ferment sugars into alcohol using yeast. Hooray!
I drank some amber-coloured fluid with my dinner tonight that was around 4.6% ethanol. The Bundy and cola I'm sipping as I type this has a bit more, 6.5% according to the can.
Methanol ('wood alcohol') is the simplest member of the alcohol family (any organic compound with an 'OH' hydroxyl added to it). Methanol is CH3OH - it is poisonous to drink. The next one is ethanol (grain alcohol) - C2H5OH - the alcohol we drink and love. You can keep going by adding more CH2 chains to the molecule. C5H11OH for example is Pentanol (Amyl alcohol) - an industrial alcohol used to make acetylene, ethylene and propylene. You can also have alcohols with more than one OH string, such as ethylene glycol (C2H4(OH)2), and glycerine (C3H5(OH)2).
Read this Lee -
http://en.wikipedia.org/wiki/Ethanol