1 I4G N-(2-methylpropyl)glycine 1.000 2 A1AV8 N-(prop-2-en-1-yl)glycine 0.889 3 9AK N1-(2-hydroxyethyl)-2-methyl-1,2-propanediamine 0.800 4 CL5 N-(3-oxopropyl)glycine 0.800 5 NLY N-(4-aminobutyl)glycine 0.727 6 WJZ Tiopronin 0.727 7 AAC Acetylamino-acetic acid 0.700 8 C9K 2-[[(2~{S})-2-azanylpropyl]amino]ethanol 0.700 9 IPG N-isopropyl glycine 0.700 10 J9X 2-(ethylamino)-2-oxidanylidene-ethanoic acid 0.700