I recently saw this:
What chemical does this formula represent?
The structure represents adrenaline or 'epinephrine' (en.wikipedia.org/wiki/Epinephrine). As in:
Go out and have an adrenaline rush on your birthday!!
The image on wikipedia has a slightly rotated ring, so doesn't look identical.
You can easily search for chemical structures online. Just one example is ChemSpider. It has an online editor in which you can draw the structure. You can also upload images.
Always make sure to compare the resulting molecule with your original structure to see if it's exactly the same.
But yes, it's adrenaline/epinephrine.