2-Propylvaleric acid 2-isopropylidenehydrazide 38068-35-8 BRN 2441302 N'-Isopropylidene dipropylacetohydrazide [French] Pentanoic acid, 2-propyl-, (1-methylethylidene)hydrazide Valeric acid, 2-propyl-, 2-isopropylidenehydrazide