pertechnate
perthiocyanate
peracetate
peroxynitrate
persulphocyanate
perfluorooctanoate
perchlorate
nonafluorobutanesulfonate
peroxalate
arogenate
pyrophosphate
perfluorooctane sulfonate
formyltetrahydrofolate
ricinelaidate
pyrotartrate
iodide
propenoate
iminoacetate
acrylate
isethionate
pyruvate
benzilate
rutate
homogentisate
formiminotetrahydrofolate
isocyanate
sulpharsenate
brassidate
salvianolate
isostearate
gallotannate
bisalt
isocaproate
salicylate
hydrosalt
isovalerate
phenpropionate
pyroarsenate
ursodeoxycholate
isophthalate
pimarate
oxopropanoate
diiodosalicylate
phenylpropionate
pseudouridylate
isosaccharinate
purpurate
aceturate
hydracrylate
oxalate