how i draw the R and S configuration of vitamin d3 molecule

Expert Solution

There are some steps to draw R and S configurations of any molecule.

Identify the stereocenter.
Give priorities to substituents according to atomic mass. Higher atomic mass receives higher priority.

e.g CH3- has higher priority than H.

3. Now, the lowest priority substituent should point away from the viewer, means from us.

4. Draw an arrow from higher priority atom to second higher to 3rd priority.

If the arrow is clockwise it is R configuration. If it is anti-clockwise, it is S configuration.

queen_honey_blossom answered 2 years ago

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