Molecular formula: CH4N2O
CAS: 57-13-6
Appearance: White powder
Properties:
White shape crystallization or white powder. Melting point 132.7 degree (breakdown). Soluble in water, alcohol and benzene, slightly soluble in ether, insoluble in trichloromethane
Use:
Analytics reagents, stabilizer. Also used in organic synthesis.

Test item	Specification
	Reagent grade	Pharmaceutical grade
Appearance	Conform	Conform
Assay	≥ 99.0	≥ 99.0
Clarity test	Conform	Conform
Water insoluble/%	≤ 0.005	≤ 0.02
Ignition residue/%	≤ 0.01	≤ 0.02
Chloride (Cl)/%	≤ 0.0003	≤ 0.001
Sulfate (SO4)/%	≤ 0.001	≤ 0.005
Ammonia (NH4)/%	≤ 0.005	≤ 0.005
Ferric (Fe) /%	≤ 0.0002	≤ 0.0005
Heavy metal(Pb) /%	≤ 0.0002	≤ 0.0005
C2H5N3O2 /%	≤ 0.2	≤ 0.4