5. Chirality
R and S Configuration
5PRACTICE PROBLEM
Valine has two stereoisomers. The S enantiomer occurs naturally. Identify the S-valine among the following structures.
![](https://lightcat-files.s3.amazonaws.com/problem_images/dfe01ea8d9e5f0e1-1676478878656.jpg)
Valine has two stereoisomers. The S enantiomer occurs naturally. Identify the S-valine among the following structures.