Chiral Center Priority: Determining R and S Configurations Using CIP Rules

[Destroxia]

Homework Statement

Say you have a chiral center carbon, attached to it are a H, a CH3, an OH, and a CH2CH2OH. The H is pointing away from you, and in a clockwise direction it goes, CH3, OH, CH2CH2OH

My question is what is the priority of this? My main confusion is in the fact that since both the OH and CH2CH2OH have an OH in them, does the OH take priority since it is directly connected to the carbon? As in, do you just stop right there, and you know it has more priority?

The Attempt at a Solution

This is what I THINK it should be...

Priorities:
H: (4)
CH3: (3)
OH: (1)
CH2CH2OH: (2)

Therefore, it goes from OH, to CH2CH2OH, to CH3, which is a clockwise direction, therefore it is R ?

 

[Bystander]

https://en.wikipedia.org/wiki/Chirality_(chemistry)
Depends on choice of convention.

 

[Destroxia]

https://en.wikipedia.org/wiki/Chirality_(chemistry)
Depends on choice of convention.

Thank you, but I am confused on what you mean by my choice of convention? We are using R and S.

 

[Bystander]

R and S.

Then, one uses "C-I-P" detailed in the link.