Isorhoifolin and vicenin II are main compounds of ethyl acetate fraction (EAcF) obtained from Erythrina velutina leaves, EAcF increases the cardiac contractile force by increasing the l-type calcium current and activating the adrenergic receptor pathway.

Hosenkoside M is a bazaine glycoside extracted from the balsam seeds of Hosenkoside.

四氯儿茶酚是五氯苯酚的代谢产物。