hygronium

Trepirium

2-(1,1-dimethylpyrrolidin-1-ium-2-carbonyl)oxyethyl-trimethylazanium diiodide

2-(1,1-dimethylpyrrolidin-1-ium-2-carbonyl)oxyethyl-trimethyl-ammonium diiodide

2-(1,1-dimethylpyrrolidin-1-ium-2-yl)carbonyloxyethyl-trimethyl-azanium diiodide