C6H6N2O

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The molecular formula C6H6N2O may refer to:

  • Acetylpyrazine, an organic compound; a pyrazine and a ketone
  • Isonicotinamide, the amide form of isonicotinic acid; an isomer of nicotinamide
  • Nicotinamide, a form of vitamin B3 found in food, used as a dietary supplement and medication