3,5-Dimethylpyrazole-4-carboxylic acid ethyl ester 3.5. Dimethylpyrazol 4-carbonsaeureaethyl ester [German] 35691-93-1 4-Pyrazolecarboxylic acid, 3,5-dimethyl-, ethyl ester 5-25-04-00140 (Beilstein Handbook Reference) BRN 0123695