67584-31-0 Benzeneacetic acid, alpha-((3-methoxy-1-methyl-3-oxo-1-propenyl)amino)-, monopotassium salt EINECS 266-723-0 Potassium ((3-methoxy-1-methyl-3-oxoprop-1-enyl)amino)phenylacetate alpha-((3-Methoxy-1-methyl-3-oxo-1-propenyl)amino)benzeneacetic acid, monopotassium salt