1,2-Bis(ethoxycarbonyl)hydrazine 1,2-Dicarbethoxyhydrazine 1,2-Hydrazinedicarboxylic acid, diethyl ester 4114-28-7 Bicarbamic acid, diethyl ester Diethyl 1,2-hydrazinedicarboxylate Diethyl bicarbamate Diethyl hydrazodicarboxylate Ethyl hydrazoformate N,N'-Diethoxycarbonylhydrazine NSC3002 s-Dicarbethoxyhydrazine sym-Dicarbethoxyhydrazine