File:Noretynodrel molecule ball.pngDescriptionNoretynodrel molecule ball.png English: Ball-and-stick model of the noretynodrel molecule, a progestin which is no longer used. Color code:
File:Norethynodrel molecule skeletal.pngDescriptionNorethynodrel molecule skeletal.png Skeletal stick model (non-chiral hydrogens omitted for clarity) of the norethynodrel molecule, also known as Enovid
File:Noretinodrel3D.pngDescriptionNoretinodrel3D.png English: Ball-and-stick model of the Norethynodrel molecule C20H26O2. Model constructed using ACD/ChemSketch and Accelrys