[18,19-Dinorpregn-4-en-20-yn-3-one-13-ethyl-17-hydroxy-,(17.α.)-(-)-]
CAS No.: 797-63-7 Formula: C21H28O2
Weight: 312.44600
Synonyms: postinor; Levonelle; norplant2; follistrel; Microlut;