CAS No.: 71-30-7 Synonyms: 4-Amino-2-hydroxypyrimidine; 4-Aminopyrimidin-2-(1 H )-one Formula: C₄H₅N₃O Formula Weight: 111.1 Linear Formula: C₄H₅N₃O MDL No.: MFCD00006034 Melting Point: >300 °C(lit.)