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Ellaone(CAS NO.126784-99-4) is a selective labelled progesterone receptor modulator.
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    1. What is ulipristal acetate?

    Ellaone(CAS NO.126784-99-4)
     is a selective labelled progesterone receptor modulator (SPRM) for emergency contraception within 120 hours (5 days) after an unprotected intercourse or contraceptive failure.  Ulipristal acetate is available by prescription only. Its chemical name is 19-Norpregna-4,9-diene-3,20-dione,17-(acetyloxy)-11-[4-(dimethylamino)phenyl]-, (11b)-. Its trade name ellaOne in the European Union, ella in the U.S. Someone also call it CDB 2914 or VA 2914 . The Product Categories of it is as follows: API; Aromatics; Intermediates & Fine Chemicals; Isotope Labelled Compounds; Pharmaceuticals; Steroids.

    2. Other properties of ulipristal acetate?

    Ellaone had two deleted cas number which were 136960-00-4 and 199015-61-7. HRP 2000 has its molecular weight which is 475.62 g·mol−1. Its molecular formula is C30H37NO4. Its density is 1.19 g/cm3. Its melting point is 183-185 °C. Its boiling point is 640.1 °C at 760mmHg. Its flash point is 340.9 °C. Ulipristal acetate structure is as follows:

    3. Side effects of ellaone

    Ella is a kind of progesterone agonist or antagonist emergency contraception. It is applicable to protect you from unprotected sexual intercourse. It is also suitable for someone who are known or suspected pregnancy after contraceptive failure prevention. But it can not be used as a contraceptive routine use.

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