Is 19-Norpregna-4,9,11-trien-20-yn-3-one, 17-hydroxy-, (17-alpha)- vegan?

Norgestrienone is also known as 19-Norpregna-4,9,11-trien-20-yn-3-one, 17-hydroxy-, (17-alpha)-.

Norgestrienone is a synthetic progestin medication used in birth control pills, often combined with ethinylestradiol. It was developed by Roussel Uclaf and is registered for use only in France.

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