2,3,5,6-TETRAFLUORO-4-NITROPYRIDINE , 【3511-89-5】
Molecular Formula: C5F4N2O2
Formula Weight: 196.06
4,6-dibroMo-2-phenyl-PyriMidine , 【83217-06-5】
Molecular Formula: C10H6Br2N2
Formula Weight: 313.98
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