This is a stupid question, but I can’t find one of the compounds on this toilet paper: Nice toilet paper

I have in order:

  • Salicylic acid
  • Aceton
  • Caffeine
  • ?
  • Urea

closed as off-topic by Mithoron, Todd Minehardt, Jon Custer, airhuff, Tyberius Dec 26 '17 at 3:49

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The missing compound is 4-[1-hydroxy-2-(methylamino)ethyl]benzene-1,2-diol, also known as adrenaline.


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