3-[5-(azaniumylmethyl)-4-(2-oxido-2-oxoethyl)-1H-pyrrol-3-yl]propanoate 3-[5-(azaniumylmethyl)-4-(2-oxido-2-oxo-ethyl)-1H-pyrrol-3-yl]propanoate 3-[5-(ammoniomethyl)-4-(2-oxido-2-oxoethyl)-1H-pyrrol-3-yl]propanoate 3-[5-(ammoniomethyl)-4-(2-keto-2-oxido-ethyl)-1H-pyrrol-3-yl]propionate ZINC00056609