Bisdemethoxycurcumin-d8 (Curcumin III-d8) is the deuterium labeled Bisdemethoxycurcumin (HY-N0007A). Bisdemethoxycucurmin (Curcumin III) is a curcuminoid compound and an inhibitor of P-glycoprotein and ferroptosis. Bisdemethoxycucurmin exhibits multiple activities such as anti-oxidation, anti-inflammation and anti-tumor. Bisdemethoxycucurmin can be used for the research of tumors and inflammatory diseases[1][2][3][4][5].