Latin name: Aesculus wilsonii Rehd Specification:12:1;20% Aesbin Appearance: Fine Powder Cas no: 6805-41-0 Basic Information: The main active ingredient of the Shorea sub-extract is escin. It is a three-terpene compounds, which including Aescin A, B, C, D. and Aescin A and Aescin B are known as escin Â-escin, while Aescin C and Aescin D are called Á-escin.. Á-escin and Â-escin are two isomers of Aescin. Although two melting point, optical rotation, hemolytic index and water solubility of two Aescin are not the same, they are not much different effect. 25kg /bags /drum or as your request.