Ammonia Pine was a formerly a cleaning lady who worked at a research lab. One day she accidentally inhaled the fumes of an experimental bathroom disinfectant. The fumes had a strange effect on her and turned her into a cleaning-obsessed villain with a sporadic and violent personality. She was later recruited by F.O.W.L. for their dastardly plans. She hates and is even afraid of dirt.
She has a sister named Ample Grime, also a F.O.W.L. agent.
Darkwing gives a description of her as apparently having been normal prior to her exposure to experimental cleaning supplies which "twisted her mind; now she scrubs for F.O.W.L."
Ammonia Pine appears as the primary villain in only one episode, "Dirty Money" (the 3rd episode in production order). Her other two appearances - "Cleanliness is Next to Badliness" and "Dirtysomething" feature her paired with Steelbeak and Ample Grime respectively. She also makes cameo appearances in "Ghoul of my Dreams," "In Like Blunt," and "Time and Punishment."
Ammonia Pine appears in the videogame Disney Adventures: World Conquers, released in Panasonic 3DO and Published by Capcom in 1993. She is the fifth boss, then appears in the stage The Castle Store, Helping with Beast from Beauty and the Beast.
- Apparently an accomplished martial-cleaning-artist
- Also technically adept with mechanical cleaning supplies such as creating an enormous vacuum cleaner, plunge-dagger, and restoring a giant mop-wringer, and her cleaning-tank vehicle.