CAS: 51-21-8 EC No: 200-085-6 MDL No: MFCD00006018 RTECS: YR0350000 UN No: UN2811; Haz Class: 6.1; Packing Group: III Powder Molecular Formula: C₄H₃FN₂O₂ MW: 130.08 Melting Point: 282-286° (decomposes)

CAS: 154-42-7 EC No: 205-827-2 MDL No: MFCD00233553 RTECS: UP0740000 UN No: UN2811; Haz Class: 6.1; Packing Group: III Powder Molecular Formula: C₅H₅N₅S MW: 167.19 Melting Point: >300°

CAS: 73-24-5 EC No: 200-796-1 MDL No: MFCD00041790 RTECS: AU6125000 UN No: UN2811; Haz Class: 6.1; Packing Group: III Powder Molecular Formula: C₅H₅N₅ MW: 135.13 Melting Point: >360°