The amyrins are a pair of closely related natural chemical compounds of the triterpene class. They are designated α-amyrin and β-amyrin. Each has the chemical formula C30H50O. They are widely distributed in nature and have been isolated from a variety of plant sources. α-Amyrin is found in dandelion coffee.

CAS：559-70-6
中文别名：β-香树脂醇;beta-香树精;
英文别名：beta-Amyrin;AMYRIN,B;Olean-12-en-3-ol, (3β)-;beta-amyrin;B-AMYRIN;β-Amyrin;Olean-12-en-3-ol;Einecs 209-204-6;b-Amyrenol;
分子式：C30H50O
分子量：426.717
精确质量：426.386
Psa：20.23
Logp：8.1689

UNII：KM8353IPSO

外观与性状：白色结晶粉末
密度：1.01g/cm3
沸点：260ºC
熔点：187-190°C
闪点：217.7ºC
折射率：1.539
储存条件：Keep tightly closed.

安全说明：S22; S45
危险类别码：R22
WGK Germany：3
危险品标志：Xi

生产方法
1. 从石油醚或乙醇中得针晶。