Ethanol, chemically, “75% ethanol, kills all bacteria, no more corona!” – every hand sanitizer bottle ever. What is this ethanol?

Ethanol, chemically, C2H60 or C2H50H is an alcohol with two carbon atoms, giving it the prefix of eth- a single carbon bond, giving it the infix -an- and since it has a hydroxyl group, or “OH”- group it gets the suffix -ol.

Ethanol is made mainly by fermentation, which is yeast being added to glucose, making the yeast consume the glucose, releasing ethanol and carbon dioxide, with an alcohol concentration of about 15-20%, then it is heated up, and distilled, to purify the concentration upwards of 99% ethanol.