Robuta

https://lateralscience.blogspot.com/2014/06/picric-acid-in-beer.html
Main Menu - click above Incredibly, the high explosive 246 trinitrophenol (picric acid) was used to adulterate beer in the eighteen fif...
picric acidlateralsciencebeer
https://www.ncbi.nlm.nih.gov/Structure/pdb/1VYR
PENTAERYTHRITOL TETRANITRATE REDUCTASEFLAVIN MONONUCLEOTIDEPICRIC ACID
pentaerythritol tetranitratepicric acidstructurereductase