ML 309 is a potent, selective mutant IDH1 R132H inhibitor with IC50 of 96 nM.

MKK7-COV-9 (MKK7 Covalen inhibitor 9) is a potent, selective, covalent MKK7 inhibitor, displays >1,000-fold selectivity over MKK4.

MKK7-COV-13 (MKK7 Covalen inhibitor 13) is a potent, selective, covalent MKK7 inhibitor with in vitro IC50 of 10 nM, displays >1,000-fold selectivity over MKK4 (IC50>10 uM).

MKC9989 is a specific small molecule inhibitor of IRE1α Rnase (Kd=0.84 uM) with potency against the splicing of XBP1 mRNA (EC50=0.33 uM)..

MK-9470 is a potent, selective cannabinoid CB1 receptor (CB1R) inverse agonist with IC50 of 0.7 nM, 18F MK-9470 has been developed for use in human brain imaging..

MK-886 is an inhibitor of leukotriene biosynthesis (IC50 = 3 nM in human polymorphonuclear leukocytes).

MK-8825 is a highly potent, selective, orally bioavailable CGRP receptor antagonist with Ki of 17 nM for rat CGRP.

MK-8745 is a potent and selective Aurora A inhibitor with IC50 of 0.6 nM, more than 450-fold selectivity for Aurora A over Aurora B.

MK-8353 hydrochloride (SCH-900353) is a highly potent, orally bioavailable, dual-specificity ERK1/2 inhibitor with IC50 of 23.0/8.8 nM, respectively.

MK-8325 is a potent, selective pan-genotype HCV NS5A inhibitor with IC50 of 15, 1 and 3 pM for GT1a, GT1b and GT2a, respectively.

MK-8325 is a potent, selective pan-genotype HCV NS5A inhibitor with IC50 of 15, 1 and 3 pM for GT1a, GT1b and GT2a, respectively.

MK-8318 (MK8318) is a potent, selective, orally available CRTh2 receptor antagonist with Ki of 5 nM, shows nM potency in functional assay (cAMP IC50=8 nM, β-Arrestin IC50=3.5 nM.

MK-8282 is a potent, selective, oral GPR119 agonist with EC50 of 10 and 58 nM for hGPR119 and mGPR119, respectively.

MK-8267 (SCH 2047069) is a potent, orally bioavailable, brain penetrant kinesin spindle protein (KSP) inhibitor with EC50 of 3 nM.

MK-8245 trifluoroacetate is a potent, selective liver-targeted stearoyl-CoA desaturase (SCD) inhibitor with IC50 of 3, 3 and 1 nM for rat, mouse and human SCD1 enzyme, respectively.

MK-8141 (ACT-077825) is a novel potent, selective, direct Renin inhibitor for the treatment of cardiovascular disorders..

MK-8033 is a potent, specific, dual c-Met/Ron kinases inhibitor with IC50 of 1/7 nM, also potently inhibits oncogenic c-Met activation loop mutants Y1230C, Y1230H and Y1235D with IC50 of 0.6-1.2 nM.

MK-8033 is a potent, specific, dual c-Met/Ron kinases inhibitor with IC50 of 1/7 nM, also potently inhibits oncogenic c-Met activation loop mutants Y1230C, Y1230H and Y1235D with IC50 of 0.6-1.2 nM.

MK-6892 is a highly potential GPR109A agonist with Ki value of 4.0 nM.

MK-6169 is a potent, pan-genotype HCV NS5A inhibitor with replicon EC90 of 1-33 nM, retains potency against common resistance-associated substitutions in the major genotypes.

MK591(Quiflapon sodium) is a selective and specific 5-Lipoxygenase-activating protein (FLAP) inhibitor.

MK-4074 is a potent, liver-specific, orally active inhibitor of acetyl-CoA carboxylase ACC1 and ACC2 with IC50 of ~3 nM.

MK-4074 is a potent, liver-specific, orally active inhibitor of acetyl-CoA carboxylase ACC1 and ACC2 with IC50 of ~3 nM.

MK-3901 is a potent, selective, orally active P2X3 antagonist with IC50 of 21 nM.

MK-3697 is a third insomnia drug, currently being developed by Merck. MK-3697 is a potent and selective Orexin receptor antagonist with Ki = 0.95 nM.

MK-3281 is a potent and orally bioavailable inhibitor of HCV NS5B polymerase with IC50 of 6 nM.

MK-3207 is a potent and orally bioavailable CGRP receptor antagonist (IC50= 0.12 nM; Ki value= 0.024 nM); highly selective versus human AM1, AM2, CTR, and AMY3.

MK2-IN-1 is a potent, selecitve, non-ATP competitive MAPKAPK2(MK2) inhibitor with IC50 of 0.11 uM.

MK-2894 is a highly potent and selective second generation EP4 antagonist.

MK-2048 is a potent inhibitor of HIV-1 integrase (IN) and IN mutant R263K with IC50 of 2.6 nM and 1.5 nM, respectively.