CHD1Li 6.11 is a potent oncogenic CHD1L inhibitor (IC50=3.3 µM for cat-CHD1L recombinant protein). CHD1Li 6.11 is an orally bioavailable antitumor agent, significantly reducing the tumor volume of CRC xenografts generated from isolated quasi mesenchymal cells (M-phenotype), which possess enhanced tumorigenic properties.