The CH2Cl2 extract of Tanacetum microphyllum aerial parts exhibited an
ti-inflammatory activity and yielded two anti-inflamatory flavonoids:
roxy-3,6,4'-trimethoxyflavone(centaureidin)1!,and 5,3'-dihydroxy-4'-m
ethoxy-7-carbomethoxyflavonol 2!. This is the first report of the che
mical composition of Ta. microphyllum and of the isolation of centaure
idin from che genus Tanacetum.