1,2-Hydrazinedicarboxylic acid, diethyl ester, s-Dicarbethoxyhydrazine, Ethyl hydrazoformate, Diethyl 1,2-hydrazinedicarboxylate, Bicarbamic acid,diethyl ester, 1,2-Hydrazinedicarboxylic acid,diethyl ester, 1,2-Hydrazindicarbonsaeure-diethylester, 1,2-dicarbethoxyhydrazine, bis-N-ethoxycarbonyl hydrazine, sym-Dicarbethoxyhydrazine, Diethyl bicarbamate, Diethyl hydrazodicarboxylate