Example nonoses

• Neuraminic acid
  Neuraminic acid
  Neuraminic acid is a 9-carbon monosaccharide, a derivative of a ketononose. Neuraminic acid may be visualized as the product of an aldol-condensation product of pyruvic acid and D-mannosamine...
  
  
• Sialic acid
  Sialic acid
  Sialic acid is a generic term for the N- or O-substituted derivatives of neuraminic acid, a monosaccharide with a nine-carbon backbone. It is also the name for the most common member of this group, N-acetylneuraminic acid...
  
  
• Legionaminic acid
• Pseudaminic acid