1-Methyl-1-formylhydrazide 1-Methylformylhydrazine 2-Methyl-2-formylhydrazine 758-17-8 Formic acid, 1-methylhydrazide Formic acid, methylhydrazide Hydrazine, 1-formyl-1-methyl- Hydrazinecarboxaldehyde, 1-methyl- Methylformylhydrazine N-Formyl-N-methylhydrazine N-Methyl-N-formylhydrazine NSC122452