D4476 is a potent, selective, and cell-permeant CK1 (casein kinase 1) inhibitor with IC50 of 200 nM and 300 nM in a cell-free assay for CK1 from Schizosaccharomyces pombe and CK1δ, respectively. Also acts as an ALK5 inhibitor with IC50 of 500 nM.

Casein Kinase II Inhibitor IV is a small-molecule inducer of epidermal keratinocyte differentiation.

TTP 22 is a high affinity, ATP-competitive casein kinase 2 (CK2) inhibitor with IC50/Ki of 0.1 μM/40 nM, showing selectivity for CK2 over JNK3, ROCK1, and MET (IC50> 10 μM).

DMAT is a potent and specific CK2 inhibitor with an IC50 value of 130 nM.

CX-4945 Sodium is a selective inhibitor of CK2 catalytic subunits with an IC50 value of 1 nmol/L.

GO289 is a potent and selective CK2 inhibitor.

LH846 is a selective inhibitor of casein kinase (CK) 1δ with IC50 of 290 nM, 1.3 μM and 2.5 μM for CK1δ, ε and α, displays no inhibitory activity at CK2.

CX-4945 is a potent and selective ATP-competitive small molecule protein kinase CK2 inhibitor with a Ki and an IC50 of 0.38 and 1 nM for recombinant human CK2α, respectively.

PF-4800567 is an inhibitor of casein kinase 1ε (CK1ε) with IC50 of 32 nM.

CK1-IN-1 is a casein kinase 1 (CK1) inhibitor extracted from patent WO2015119579A1, compound 1c, has IC50s of 15 nM, 16 nM, 73 nM for CK1δ, and CK1ε, p38σ MAPK, respectively[1].

PI-828 is a dual PI3K and casein kinase 2 (CK2) inhibitor with IC50s of 173 nM, 149 nM, and 1127 nM for p110α, CK2, and CK2α2 in lipid kinase assay, respectively.

BioE-1115 is a highly selective and potent PAS kinase (PASK) inhibitor with an IC50 of ~4 nM. BioE-1115 is also a potent casein kinase 2α inhibitor with an IC50 of ~10 μM .