the ethanol, if gotten from a lab, may or may not be denatured. this means they add a small amount of the ohh so toxic methanol, so that people cant drink it. but in higher level chem labs they wont, cause the methanol can mess with some results. it all depends, so unless you know for sure its not denatured, i wouldnt risk it.
having said that, a friend of mine who is in medicine was given a large jar of pure ethanol (well as pure as it gets, 96%+4%H2O) from his lab TA after his lab final at the end of last year. that shit would make even the strongest of drinkers cringe like a mofo. pure FIRE!