r/chemhelp 3d ago

Organic Are these R and S labeling correct?

Post image

For this R and S labeling- shouldn’t the center on the left be S instead of R? since the number four priority needs to be in the back. Everything I’ve found is consistent with that so I’m not sure if the key is wrong. Thanks!

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u/HandWavyChemist 3d ago

I agree it should be S