potassium 2-methyl-2-[(1-oxoallyl)amino]propanesulphonate

2-(Acryloylamino)-2-methylpropane-1-sulfonic acid potassium salt

2-(Acryloylamino)-2-methyl-1-propanesulfonic acid potassium salt

2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid potassium salt