(17?)-(+/-)-13-Ethyl-17-hydroxy-18,19-dinorpregn-4-en-20-yn-3-one-d6 ;(+/-)-13-Ethyl-17?-ethynyl-17-hydroxygon-4-en-3-one-d6 ; (+/-)-Norgestrel-d6 ; DL-Norgestrel-d6 ; Methylnorethindrone-d6 ; Monovar-d6 ; Neogest-d6 ; Ovrette-d6 ; Postinor-d6 ;Norgestrel-d6
