2-Ethyl-2-hydroxybutyric acid 2-(p-tolyl)hydrazide 3166-52-7 BRN 0747200 BUTYRIC ACID, 2-ETHYL-2-HYDROXY-, 2-(p-TOLYL)HYDRAZIDE Butanoic acid, 2-ethyl-2-hydroxy-, 2-(4-methylphenyl)hydrazide (9CI) Glycolic acid, diethyl-, p-tolylhydrazide p-Tolylhydrazide of diethylglycolic acid