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Monosaccharide Configurations definitions

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  • Monosaccharide
    A simple sugar molecule with multiple chiral carbons, often analyzed for its configuration using two main systems.
  • Chiral Carbon
    A carbon atom bonded to four distinct chemical groups, creating non-superimposable mirror image forms.
  • Cahn-Ingold-Prelog System
    A method for assigning absolute configuration to chiral centers based on atomic number priorities, resulting in R or S designations.
  • R Configuration
    A designation for a chiral center where the sequence of priorities follows a clockwise direction, unless adjusted for projection orientation.
  • S Configuration
    A designation for a chiral center where the sequence of priorities follows a counterclockwise direction, unless adjusted for projection orientation.
  • Fischer Projection
    A two-dimensional representation of molecules, with vertical chains and horizontal bonds indicating groups projecting outward.
  • D Configuration
    A designation in carbohydrates where the hydroxyl group on the reference chiral carbon points to the right in a standard Fischer projection.
  • L Configuration
    A designation in carbohydrates where the hydroxyl group on the reference chiral carbon points to the left in a standard Fischer projection.
  • Enantiomer
    A pair of molecules that are non-superimposable mirror images, differing in configuration at all chiral centers.
  • Hydroxyl Group
    A functional group consisting of an oxygen and hydrogen, whose position on chiral carbons determines D or L configuration.
  • Carbonyl Group
    A functional group with a carbon double-bonded to oxygen, typically placed at the top in standard Fischer projections.
  • Priority Assignment
    The process of ranking substituents on a chiral center based on atomic numbers to determine configuration.
  • Aldehyde
    A functional group with a carbonyl at the end of a carbon chain, often found at the top of monosaccharide Fischer projections.
  • Glucose
    A common monosaccharide with multiple chiral centers, used to illustrate configuration assignment in biochemistry.
  • Mirror Image
    A spatial arrangement where two molecules reflect each other, crucial for distinguishing enantiomers.