1. 
   Xantocillin
   Xantocillin (INN), also known as xanthocillin X or ophthocillin, was the first reported natural product found to contain the isocyanide functional group. It was first isolated from Penicillium notatum by Westling in 1950 and subsequently from several other sources. ...
   Found op http://en.wikipedia.org/wiki/Xantocillin
   
   

Tip: double click on a word to show its meaning.