SLV-2436 is a highly potent and ATP-competitive inhibitor of MNK1 and MNK2 with IC50s of 10.8  nM and 5.4 nM, respectively.

CGP57380 (CGP-57380) is a potent, cell-permeable and selcetive MNK1 inhibitor with anticancer activity.

Tomivosertib (also known as eFT508) is a potent, highly selective, reversible, ATP-competitive and orally bioavailable inhibitor of MNK1 and MNK2 (Mitogen-Activated Protein Kinase Interacting Kinase) with IC50 values of 1-2 nM against both isoforms in enzyme assays.

ETC-206 is a novel, potent and selective MNK1/2 inhibitor with IC50 of 64 nM for MNK1 and IC50 of 84 nM for MNK2.