19477-42-0 5-(2-(Diethylamino)ethoxy)-3-methyl-1-phenylpyrazole-4-carboxylic acid ethyl ester 2HCl Pyrazole-4-carboxylic acid, 5-(2-(diethylamino)ethoxy)-3-methyl-1-phenyl-, ethyl ester, dihydrochloride