Calycosin-7-O-β-D-glucoside (calycosin-7-O-beta-D-glucopyranoside) possesses a protective effect on rat hepatocytes, an inhibitory effect on COX-2 activity. Calycosin 7-O-β-D-glucoside has antimicrobial activity. Calycosin 7-O-β-D-glucoside is a promising anti-HIV agent. It shows scavenging activity to DPPH radicals and superoxide anion. Calycosin 7-O-β-D-glucopyranoside possesses an alleviating effect on osteoarthritis and can increase the fluidity of brain cell membrane in ischemia-reperfusion rats.