17-Desacetyl Norgestimate-2,2,4,6,6,10,16,16-D8, 17-Desacetyl Norgestimate-D8, (17α)-13-Ethyl-17-hydroxy-18,19-dinorpregn-4-en-20-yn-3-one-d8 Oxime; 17-Deacetylnorgestimate-d8; 18-Methylnorethindrone-d8 Oxime; BRN 4202099-d8; D-Norgestrel-d8 3-Oxime; Levonorgestrel-d8 3-Oxime; RWJ 10553-d8; Norelgestromin-d8