A partial CB receptor agonist isolated from the bark of M. officinalis that has been used in Asian traditional medicine for the treatment of anxiety, sleep disorders, and allergic diseases; demonstrates selectivity for the peripheral CB2 receptor subtype (EC50 = 3.28 μM; Ki = 1.44 μM) versus central CB1 (EC50 = 18.3 μM; Ki = 3.15 μM)