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nature : the urine of pregnant women beginning of a water-soluble gonadotropin from placental chorionic. It is a glycoprotein hormone. White or pale yellow powder. Dissolved in water, was colorless or pale yellow liquid clarity, and do not dissolve in organic solvents. In dilute aqueous solution of instability and met the excessive heat and acid or alkali, completely lost titer. Concentrated in the aqueous stability. Used in the treatment of habitual abortion, dysfunctional uterine bleeding, such as cryptorchidism. Pregnancy can be two to five months derived from the urine of pregnant women.
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