The stereoisomers that are not related to objects and mirror images are called diastereomers which means that they are not enantiomers. This articles covers the Diastereomers Meaning, Example, Properties, Differentiation, FAQs. Learn what diastereomers are, how they differ from enantiomers and epimers, and how to name them using Cahn-Ingold-Prelog rules. Explore the types, properties, and applications of diastereomers with examples and diagrams. Diastereomers are two molecules which are stereoisomers (same molecular formula, same connectivity, different arrangement of atoms in space) but are not enantiomers. A diastereomer is a non-mirror image, non-identical stereoisomer of a compound. Learn about the types, properties, and applications of diastereomers, and how they differ from enantiomers and epimers.