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| Product | Description | |
|---|---|---|
| 17-Epi-Norethindrone Acetate | An impurity of Norethindrone, which is an oral contraceptive involved in the inhibition of cytosolic sulfotransferases. Synonyms: 17-(Acetyloxy)-19-norpregn-4-en-20-yn-3-one; 19-Norpregn-4-en-20-yn-3-one, 17-hydroxy-, acetate; Norethindrone Acetate Impurity 18; (8R,9S,10R,13S,14S,17S)-17-Ethynyl-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl acetate. Grade: ≥95%. CAS No. 38673-38-0. Molecular formula: C22H28O3. Mole weight: 340.46. |  |
| 6-Keto Norethindrone Acetate (Norethindrone Impurity G) | An impurity of Norethindrone, which is an oral contraceptive involved in the inhibition of cytosolic sulfotransferases. Synonyms: 6-Oxo Norethindrone Acetate; (17α)-17-(Acetyloxy)-19-norpregn-4-en-20-yne-3,6-dione; 6-Ketonorethindrone Acetate; Norethindrone Acetate EP Impurity G. Grade: > 95%. CAS No. 438244-27-0. Molecular formula: C22H26O4. Mole weight: 354.45. | |
| Delta 5(10)-Norethindrone Acetate | An impurity of Norethindrone, which is an oral contraceptive involved in the inhibition of cytosolic sulfotransferases. Synonyms: Δ-5(10)-Norethindrone Acetate; (17α)-17-(Acetyloxy)-19-norpregn-5(10)-en-20-yn-3-one; 17-Hydroxy-19-Nor-17α-pregn-5(10)-en-20-yn-3-one Acetate; Norethisterone Acetate Impurity B (EP); Norethindrone Acetate EP Impurity B. Grade: > 95%. CAS No. 19637-28-6. Molecular formula: C22H28O3. Mole weight: 340.47. | |
| Delta-5(6)-Norethindrone Acetate (Impurity C) | An impurity of Norethindrone, which is an oral contraceptive involved in the inhibition of cytosolic sulfotransferases. Synonyms: Δ-5(6)-Norethindrone Acetate; (17α)-17-(Acetyloxy)-19-norpregn-5-en-20-yn-3-one; Norethindrone Acetate EP Impurity C. Grade: > 95%. CAS No. 1175129-26-6. Molecular formula: C22H28O3. Mole weight: 340.47. | |
| 17α-Cyanomethyl-19-nortestosterone | 17α-Cyanomethyl-19-nortestosterone is a metabolite of Norethindrone, which is an oral contraceptive involved in the inhibition of cytosolic sulfotransferases. Synonyms: STS 384; STS 528; 17α-Cyanomethyl-17β-hydroxyestr-4-en-3-one; (17α)-17-Hydroxy-3-oxo-19-norpregn-4-ene-21-nitrile; Dienogest EP Impurity F; 2-((8R,9S,10R,13S,14S,17R)-17-Hydroxy-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)acetonitrile. Grade: ≥95%. CAS No. 67473-36-3. Molecular formula: C20H27NO2. Mole weight: 313.43. | |
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