pharmaceutical secondary standard; traceable to USP and PhEur
Synonym(s): Allantoin; 5-Ureidohydantoin; Glyoxylic(acid) diureide
Empirical Formula: C4H6N4O3
Formula Weight: 158.12
Linear Formula: C4H6N4O3
MDL Number: MFCD00005260
Melting Point: 230 °C (dec.)(lit.)
Beilstein Registry Number: 102364
Signal Word: Warning
Hazard statements: H302
Hazard Codes (Europe) : Xn
Risk Statements (Europe): 22
Safety Statements (Europe): 22
WGK Germany: 1