Oxalyldihydrazide996-98-5100 % similar 2-Amino-2-oxoacetic acid hydrazide515-96-861 % similar Ethyl 2-hydrazinyl-2-oxoacetate35196-48-644 % similar Decanedihydrazide125-83-736 % similar Terephthalic dihydrazide136-64-136 % similar Trifluoroacetohydrazide1538-08-536 % similar Piperazine-2,3-dione13092-86-933 % similar N1,N2-Dimethylethanediamide615-35-033 % similar Semicarbazide sulfate101366-35-231 % similar Aminoguanidine bicarbonate2582-30-131 % similar 4-Hydroxybutyric acid hydrazide3879-08-131 % similar