(Nicely) Patience, Detective, I’ll put it in the mass spectrometer and see what the computer comes up with.

Well, both of these elements are decently rare, especially derlinine. If I’m not mistaken though, both of them can be found at Ace Chemicals.

(as Riddler) Can you hear me, Batman? I know you can. Yes, it is I, Edward Nigma, The Riddler and more importantly your intellectual superior. My genius has allowed me to easily hack into your primitive communications. My goal is simple! You complete a series of amusingly taxing challenges and, well, you'll see. Ready for your first one? Good. But be careful! "Don't CUT yourself on this SHARPLY observed portrait."