Characters: brown powder for low content; white needle crystal powder for high content
Molecular formula:C₂₁H₂₀O₉
 
Molecular weight:416.38
(1)Enterprise product No.:SK-01
Content(HPLC): ≥98.0%
(2)Enterprise product No.:SK-02
Content(HPLC): ≥90.0%
(2)Enterprise product No.:SK-03
 Content(HPLC): ≥15.0%