Ethyl Alcohol (AKA Ethanol, Pure Grain Alcohol, Neutral Grain Spirits) is the "consumable" alcohol found in alcoholic beverages. Brand name Everclear is sold over the counter (where legal) and is available in 150 proof and 190 proof (75% and 95% pure Ethanol respectively). 190 proof is illegal in at least New York, California, and Ohio. Known to be legal in at least the non-dry counties of Kentucky and Tennessee.
EDIT (From Wikipedia):
In the United States, it is illegal to sell 190-proof Everclear in California, Florida,[3] Hawaii, Iowa,[4] Maine, Massachusetts, Michigan, Minnesota, Montana, Nevada,[5] New Hampshire, North Carolina,[6] Ohio, Virginia, and West Virginia
It is legal to sell 151-proof Everclear in California, Florida, Iowa,[4] Michigan,[7] Minnesota, Nevada, North Carolina, Washington, West Virginia, Wisconsin, Ohio, Tennessee, Michigan and other states.