Content : minimum 0.70 per cent of the total content of psoralen (C 11 H 6 O 3 ) and isopsoralen (C 11 H 6 O 3 ), calculated with reference to the dried drug.

• 本品按干燥品计算，含补骨脂素(C 11 H 6 O 3 )和异补骨脂素(C 11 H 6 O 3 ) 的总量不得少于0.；70%25。