3829687 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3829687 > 2 > ChemIDplus > JF8299500 > NIOSH/JF8299500 > 18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-17-hydroxy-, (17-alpha)-, mixt. with (17-alpha)-19-norpregna-1,3,5(10)-trien-20-yne-3,17-diol (5:3) JF8299500 LOC-31A > JF8299500 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=JF8299500 $$$$