epimer
/ˈɛpɪmər/
noun
- One of a pair of stereoisomers that differ in configuration at only one chiral center (in a molecule that has more than one chiral center).
- The chemist synthesized an epimer of the natural compound to test its activity.
- In carbohydrate chemistry, an epimer can have very different properties from its counterpart.
- Glucose and mannose are epimers because they differ only at the second carbon atom.