Create a Sterol Structure

Sterol Core
Position Stereochemistry Substituent
Position Stereochemistry Substituent
Position Stereochemistry Substituent
Position Stereochemistry Substituent
Position Stereochemistry Substituent
Position Stereochemistry Substituent
Position Stereochemistry Substituent
Position Stereochemistry Substituent
C25 stereochemistry   (Applies only if core has C26 modifications)
Double bond position
Double bond position
Double bond position