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Powdered Goldenseal

DEFINITION

Powdered Goldenseal is Goldenseal reduced to a fine or very fine powder. It contains NLT 2.0% of hydrastine (C21H21NO6) and NLT 2.5% of berberine (C20H18NO4), calculated on the dried basis.

USP REFERENCE STANDARDS FOR PURCHASE

USP Berberine Chloride RS
USP Hydrastine RS
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