A.It contains no less than 2.5% of hydroxyanthracene derivatives,calculated asrhein.
B.It contains down to 2.5% of hydroxyanthracene derivatives,calculated asrhein.
C.It contains more than 2.5% of hydroxyanthracene derivatives,calculated asrhein.
D.It contains up to 2.5% of hydroxyanthracene derivatives,calculated asrhein.
E.It contains not less than 2.5% of hydroxyanthracene derivatives,calculated asrhein.