Here we explain the different types of isomers - constitutional, stereoisomers, enantiomers and diastereomers - and see how it's like family relationships. Diastereomers are defined as compounds which have the same molecular formula and sequence of bonded elements but which are nonsuperimposable, non-mirror images. JEE preparation requires clarity of concepts in Diastereomers. Click here to access solved previous year questions, solved examples and important formulas based on the chapter. 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.