GAC Inhibitor 968 (311795-38-7) is an allosteric inhibitor of glutaminase C (GAC).1 Inhibition of GAC blocks oncogenic transformation induced by Rho GTPases in fibroblasts and B lymphoma cells with no effect on normal cells.2 Inhibits liver-type glutaminase GLS2 and suppresses breast tumor growth in vivo.3,4 Reverses acquired erlotinib resistance in non-small cell lung cancer.5