24310-18-7 3-Methylbutanoic acid hydrazide 4-02-00-00903 (Beilstein Handbook Reference) BRN 1700750 Butanoic acid, 3-methyl-, hydrazide (9CI) ISOVALERIC ACID, HYDRAZIDE Isobutylcarbonyl hydrazine Isovaleriansaeurehydrazid [German] Isovaleric hydrazide Isovalerohydrazide NSC 523270