UPF 1069 is a selective PARP2 inhibitor with IC50 of 0.3 μM; ~27-fold selective against PARP1.

Upadacitinib (ABT-494) is a potent and selective Janus kinase (JAK) 1 inhibitor being developed for the treatment of several autoimmune disorders with an IC50 of 43 nM.

UNC-926 is a methyl-lysine (Kme) reader domain inhibitor; inhibits L3MBTL1 with an IC50 of 3.9 μM.

UNC569 is a novel small-molecule MER inhibitor with efficacy against acute lymphoblastic leukemia in vitro and in vivo.

UNC3866 is a potent and selective antagonist of CBX4 and CBX7 chromodomains with (Kd ≈ 100 nM). It is 6- to 63-fold selective for these chromodomains over the other CBX and CDY chromodomains.

UNC2250 is a potent and selective Mer inhibitor with IC50 of 1.7 nM, about 160- and 60-fold selectivity over the closely related kinases Axl/Tyro3.

UNC2025 is a potent and orally bioavailable Mer/Flt3 dual inhibitor with IC50 of 0.8/0.74 nM for Mer/Flt3.

UNC1999 is a potent, orally bioavailable and selective inhibitor of EZH2 and EZH1 with IC50 of 2 nM and 45 nM, respectively.

UNC1215 is a potent and selective chemical probe for the methyllysine (Kme) reading function of L3MBTL3 with Kd value of 120 nM.

UNC0646 is a potent and selective inhibitor of the homologous protein lysine methyltransferases, G9a and GLP (IC50 values are 6 nM and 15 nM for G9a and GLP, respectively).

UNC0642 is a novel highly potent, selective and cell permeable inhibitor of the homologous protein lysine methyltransferases, G9a and GLP, with IC50 < 2.5 nM.

UNC0638 is an inhibitor of protein lysine methyltransferases G9a(IC50<15 nM) and GLP(IC50=19 nM) with excellent potency and selectivity over a wide range of epigenetic and non-epigenetic targets.

UNC-0631 is a novel G9a inhibitor with excellent potency in a variety of cell lines and excellent separation of functional potency versus cell toxicity.

UNC0379 is a selective, substrate-competitive inhibitor of the lysine methyltransferase SETD8 with IC50 of 7.3±1.0 uM; selective over 15 other methyltransferases.

UNC0321 is a potent and selective G9a inhibitor with Ki of 63 pM, UNC0321 is the first G9a inhibitor with picomolar potency and the most potent G9a inhibitor to date.IC50 value: 63 pM(Ki); 9 nM (ECSD assay) [1]Target: G9aIt was found that replacing the 5-

UNC 669 is a potent antagonist of L3MBTL1(IC50=4.2 uM) and L3MBTL3(IC50=3.1 uM).

UNBS5162 is a novel naphthalimide that decreases CXCL chemokine expression in experimental prostate cancers; the mean antiproliferative activity IC50 value is 17.9 uM for 9 cancer cell lines; hydrolysis product of UNBS3157.

UMI-77 is a selective Mcl-1 inhibitor with Ki of 490 nM, showing selectivity over other members of Bcl-2 family.

ULK-101 is a potent and selective ULK1 inhibitor with in vitro IC50 of 8.3 nM.

Ulixertinib, also known as BVD-523 and VRT752271, is an inhibitors of ERK protein kinase.

UK5099 is an inhibitor of plasma membrane monocarboxylate transporters (MCTs) and the mitochondrial pyruvate carrier (MPC).

UF010 is a potent and selective HADC inhibitor with IC50 ~0.06 μM, 0.1 μM, 0.5 μM and 1.5 μM for HDACs 3, 2, 1 and 8, respectively. It has > 6-fold selectivity over other HDACs.

UCPH-101 is a selective excitatory amino acid transporter subtype 1 (EAAT1) inhibitor.

U-104 is a potent carbonic anhydrase (CA) inhibitor for CA IX and CA XII with Ki of 45.1 nM and 4.5 nM; low inhibition for CA I and CA II.

Tyrphostin AG 555 is a potent epidermal growth factor receptor kinase inhibitor.

TW-37 is a novel nonpeptide inhibitor to recombinant Bcl-2, Bcl-xL and Mcl-1 with Ki of 0.29 μM, 1.11 μM and 0.26 μM, respectively.

TUG-770 is a highly potent free fatty acid receptor 1 (FFA1/GPR40) agonist with EC50 of 6 nM for hFFA1.

Tubastatin A is a potent and selective HDAC6 inhibitor with IC50 of 15 nM. It is selective against all the other isozymes (1000-fold) except HDAC8 (57-fold).

Tubacin is a selective inhibitor of HDAC6 via inhibition of the second deacetylase domain (DD2).

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