2B-(SP) TFA is a eIF2B-based substrate for glycogen synthase kinase-3 (GSK-3). 2B-(SP) TFA is readily phosphorylated by both the α and β isoforms of GSK-3.

GSK3 Substrate, α, β subunit is peptide substrate for glycogen synthase kinase-3 (GSK-3) and can be used to measure GSK-3 activity.

Manzamine A hydrochloride, a member of the manzamine alkaloids, is a potent, orally active GSK-3β inhibitor (IC50=10.2 μM). Manzamine A hydrochloride shows potent activity against HSV-1 via targeting the viral gene ICP0. Manzamine A hydrochloride targets vacuolar ATPases and inhibits autophagy in pancreatic cancer cells. Manzamine A hydrochloride has antimalarial and anticancer activities.

(E/Z)-GSK-3β inhibitor 1 is a racemic compound of (E)-GSK-3β inhibitor 1 and (Z)-GSK-3β inhibitor 1 isomers. GSK-3β inhibitor 1 (compound 3a) is a glycogen synthase kinase 3β (GSK-3β) inhibitor and demonstrates high antidiabetic efficacy, with an IC50 of 4.9 nM.

Cu(II)GTSM, a cell-permeable Cu-complex, significantly inhibits GSK3β. Cu(II)GTSM inhibits Amyloid-β oligomers (AβOs) and decreases tau phosphorylation. Cu(II)GTSM also decreases the abundance of Amyloid-β trimers. Cu(II)GTSM is a potential anticancer and antimicrobial agent.

(E/Z)-BIO-acetoxime (GSK-3 Inhibitor X) is a potent and selective GSK-3α/β inhibitor, with an IC50 of 10 nM. (E/Z)-BIO-acetoxime shows more than 200-flod selectivity over CDK5/p25, CDK2/cyclin A and CDK1/cyclin B (IC50=2.4, 4.3, 63 μM).

CHIR-98023 is a potent, selective and reversible inhibitor of GSK3, with IC50s of 10 nM and 6.7 nM for GSK3α and GSK3β, respectively. CHIR-98023 can improve insulin action and glucose metabolism.

COB-187 (COB187) is a highly potent and selective inhibitor of GSK-3 with IC50 of 22/11 nM against GSK-3α/GSK-3β.COB-187 inhibits GSK-3 phosphorylation of β-catenin and, albeit to a lesser extent, glycogen synthase.COB-187 increases the protein level of β-catenin in RAW 264.7 macrophages.COB-187 enhances β-catenin localization to the perinuclear and nuclear region in THP-1 macrophage, does not change the β-catenin mRNA level.COB-187 significantly increases the expression of the Wnt target gene cyclin D1, reduces the phosphorylation of tau in HEK293 cells transfected with tau expression vector.COB-187 inhibits only 3 kinases at >40% in a panel of 414 kinase assays, more selective relative to Tideglusib.

GSK3β-IN-1a is a relatively selective and potent GSK-3β inhibitor with IC50 of 64 nM; induces replication of growth-arrested R7T1 β cells in a dose-dependent manner with EC50 of 1.1 uM, likely mediates β-cell proliferation through the Wnt signaling pathway.

TC-G 24 (Compound 24) is a potent, selective glycogen synthase kinase-3β (GSK-3β) inhibitor with an IC50 of 17.1 nM.

ARN25068 is a sub-micromolar inhibitor of the three protein kinases, GSK-3β, FYN and DYRK1A to tackle tau hyperphosphorylation.