methyl 2-(nitromethyl)butanoate

methyl 2-ethyl-2-(nitromethyl)-4-pentenoate

ethyl-[2-(1-ethyl-1-methylpiperidin-1-ium-4-yl)ethyl]-dimethylazanium,diiodide

triethyl-[4-[4-(triethylazaniumyl)butyl]phenyl]azanium,diiodide

1-ethyl-1-[6-(1-ethylpiperidin-1-ium-1-yl)hexyl]piperidin-1-ium,diiodide