Answer
1 - S
2 - (Right) C
3 - (Left) C
4 - H
Work Step by Step
- Identify the stereocenter.
1. Make a list with all atoms connected to the stereocenter, and rank them by atomic number.
- H, S, C, C
By atomic number:
- S, C, C, H
2. As we can see, there are 2 equal atoms, so we will have to find which one has the priority.
- We can do that by analyzing the atoms connected to them:
- To the left carbon: H, C, C.
- To the right carbon: C, C, C.
** Since (C > H), the right carbon will get priority.
3. Now, put the numbers in order:
1 - S
2 - (Right) C
3 - (Left) C
4 - H
