Question

What are sequence rules? How are these used to assign r and s?

Answer 1

Answer:

Chiral Centers - The R,S System If the three groups projecting toward you are ordered from highest priority (#1) to lowest priority (#3) clockwise, then the configuration is “R”. If the three groups projecting toward you are ordered from highest priority (#1) to lowest priority (#3) counterclockwise, then the configuration is “S”.