Angelic anhydride 是一种脂肪酸酐，来自于不饱和碳氢酸酐。

Angelic Anhydride is a reagent in the improved synthesis of angelate esters, which are the active chemical behind the strong pain-relieving and spasmolytic action of extracts from the plant butterbur.

94487-74-8

C10H14O3

182.219

当归酸酐;2-Methylisocrotonic Anhydride;(Z)-2-Methylbut-2-enoic anhydride

Chloroform, Dichloromethane, Ethyl Acetate, Acetone, etc.:Soluble
DMSO:Soluble
Powder: -20°C for 3 years
In solvent: -80°C for 2 years