I3IN-002 is a small molecule inhibitor targeting the RNA-binding protein IGF2BP3, with an IC50 value of approximately 2 μM in SEM cells. It disrupts the interaction with m6A-modified mRNA, destabilizing target genes (such as CDK6, MYC, and BCL2), thereby inhibiting the growth of leukemia cells, inducing cell cycle arrest, and promoting apoptosis. I3IN-002 shows potential for research in B-cell acute lymphoblastic leukemia.