5-Amino-1-ethylpyrazole3528-58-3100 % similar 5-Amino-1H-pyrazole-1-ethanol73616-27-055 % similar 1-Methyl-1H-pyrazol-5-amine1192-21-848 % similar 1-Ethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole1007110-53-343 % similar