DPPH is a cell-permeable, stable free radical that is commonly used to evaluate the ability of compounds to act as free radical scavengers or hydrogen donors and to measure the antioxidant activity of tissue extractsDPPH shows a strong absorption band at 517nm.

Opc 18750 is a compound with selective and positive inotropic effects.

Boswellic acids are a series of pentacyclic triterpene molecules that are produced by plants in the genus Boswellia.