(N-carbamoyl-hydrazino)-acetic acid, Hydrazinecarboxamide,sulfate (2:1), 2-semicarbazide acetic acid, disemicarbazide dihydrogen sulfate, semicarbazide,sulfate, (N-Carbamoyl-hydrazino)-essigsaeure, [1-(aminocarbonyl)hydrazino]acetic acid, Semicarbazid,Sulfat, semicarbazidoacetic acid