Since I can't reproduce this, I am not sure if it is a bug or a one-time occurence.
But here is what I noticed during the last test while experimenting with the test tube:
When you discover a new recipe you also get a notification about the new useful item you discovered. Recipe and item matched most of the time, except for Abbasidose which triggered Diabolic Acid as a new item ( i.imgur.com/d4zMq.jpg ) and Diabolic Acid which gave you xp for discovering Cosmox ( i.imgur.com/Zouk6.jpg ).