Sanschool contains mostly alpha-sanshool, α-β salamander - sanshool β - salamander - γ - sanshoo α - sanshoamide α - lactamase salamander lactam other ingredients. 
Molecular formula  C16H25NO
Molecular weight  247.37
CAS  No.  504-97-2
Chemical name    alpha-sanshool; beta-sanshool; gamma-sanshool
Detection  254 nm Sanschool-detection of absorbance
Sanshoamides  ≥15%
Appearance  deep yellow-green or tan liquid, with the unique aroma and Ma flavor.
Packaging   1kg and 10kg; Closed-preservation at room temperature, Frozen will be better.