Recognizing Stereoisomers

1. The following compounds may exist as two or more stereoisomers. These may be classified as enantiomer pairs or achiral diastereomers.
Select a compound by clicking the button beneath its structure, and then enter the number of isomer types in the appropriate answer box.

A Total number of stereoisomers:  .....

B Number of enantiomer pairs:  .........

C Number of achiral diastereomers:  ..


This script written by William Reusch, Dept. of Chemistry, Michigan State University. Please send comments and corrections to