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    Dydrogesterone

    IUPAC name:(9β,10α)-pregna-4,6-diene-3,20-dione

    CAS No.:152-62-5

    Molecular Formula:  C21H28O2

    Molar mass:312.446

    Pharmacological action: the chemical structure of the existence and nature of progesterone is very similar to that of progestin drugs as compared to other similar drugs has obvious advantages and safety, for the treatment of amenorrhea, endometriosis, prevention of functional bleeding and threatened abortion.

    On a:Doxercalciferol

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