;MCB-613 (4-Ethyl-2,6-bis-pyridin-3-ylmethylene-cyclohexanone) belongs to the chalcone class of compounds. It is an anti-neoplastic compound.MCB-613 is a potent steroid receptor coactivator (SRC) stimulator.MCB-613 has been used to study the molecular mechanism of MCB-613-induced cell death.