Now you are comparing different compounds of "alcohol" claiming that rubbing alcohol is equivalent to grain alcohol? Good grief.
I guess we have one of two conclusions here: Morphine and other opiate derivatives should be illegal because those substances are similar compounds as opium and heroine, or opium and heroine should be legal because of the medical history of related compounds such as morphine and codeine.
When I see you pushing for medical THC (or one of 399 other chemicals) instead of medical marijuana, I'll make the alcohol distinction.