C₈H₁₀N₄O<sub>2

What is that? Well, dear friends, this is the greatest substance in the world.
In case you haven't guessed, this is the molecular substance for caffeine. I could go into the specifics of the substance, but anyone who has internet access has access to the substance, so I'll leave with this: the best (and cheapest) way to consume the chemical is to drink coffee. You can get the most caffeine for the smallest price. I recommend Starbucks.</sub>