Calyxin B exhibits potent activity against human HT-1080 fibrosarcoma cells with an ED50 value of 0.69 microM. A methylated product of calyxin A and an epimeric mixture of Calyxin B, showed greatly reduced activity suggesting that phenolic hydroxyl groups are involved in the inhibitory activity.

164991-53-1

C35H34O8

582.64

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years