MK-0448 is a potent, specific I(Kur) current/Kv1.5 channel inhibitor with IC50 of 8.6 nM, potently inhibits IKur in human atrial myocytes with IC50 of 10.8 nM.

MK-0429 is a potent, selective, orally-active nonpeptide αvβ3 integrin inhibitor with IC50 of 0.08 nM in SPAV3 assay.

MK-0249 is a novel potent, selective histamine H3 inverse agonist for the treatment of cognitive impairment with schizophrenia..

MJN-228 is a selective ligand for the lipid-binding protein nucleobindin 1 (NUCB1) with IC50 of 3.3 uM (blocks AEA-DA probe labeling of NUCB1).

MIV-711 (MIV711, MV076159) is a potent, selective cathepsin K inhibitor with Ki of 0.98 nM, displays >1300-fold versus the other human cathepsins.

MIV-247 (MIV247) is a potent, selective, orally active inhibitor of cathepsin S with Ki of 2.1 nM (human cathepsin S).

Mitoxantrone HCl

Mitotane (Lysodren)

Mirtazapine (Remeron, Avanza)

Miriplatin

miR544-IN-1 (SID 3712249) is a selective small molecule inhibitor of miR-544 biogenesis.

MIR17PTi is a novel LNA gapmeR antisense oligonucleotide (LNA-ASO), first-in-class inhibitor of pri-mir-17-92.

Minoxidil(U 10858) is an antihypertensive vasodilator medication.

MIND-4 is a novel potent, selective, non-competitive SIRT2 deacetylase inhibitor with IC50 of 1.2 uM, Ki of 2.1 uM, and also is an inducer of the NRF2 pathway.

Milnacipran inhibits both norepinephrine transporter (NET) and norepinephrine transporter (SERT) with IC50 of 77 nM and 420 nM, respectively.

MIK665 (S-64315, MIK-665) is a novel potent, selective Mcl-1 inhibitor with potential pro-apoptotic and antineoplastic activities.

Miglitol (Glyset)

MIF-IN-3bb is a potent inhibitor of Migration inhibitory factor (MIF) tautomerase activity with Ki of 57 nM.

Midazolam (Dormicum.

MI-223 (NSC 320223) is a small molecule that specifically binds to Mcl-1 with Kd of 160 nM, inhibits HR DNA repair and sensitizes cancer cells to DNA replication agents.

MI-2-2 hydrochloride is a potent inhibitor of the menin-MLL interaction that binds to menin with low nanomolar affinity (Kd=22 nM).

MI-1481 (MI1481) is a highly potent inhibitor of the menin-MLL1 interaction with IC50 of 3.6 nM, 10-fold increase in inhibitory activity over MI-463 and MI-503.

MI 219 is a potent, specific MDM2-p53 inhibitor with Ki of 5 nM, >10,000-fold selective for MDM2 over MDMX.

MGV354 is a novel potent, selective soluble Guanylate Cyclase (sGC) activator, lowers intraocular pressure (IOP) in preclinical models of glaucoma..

MGR1 is a ROS-generating probe that can generate ROS (reactive oxygen species) in different mammalian cells, causes concentration-dependent cell death in HEK293T with IC50 of 5.7 uM..

MFN2 agonist B-A/l is a mall-molecule mimics of the peptide-peptide interface of MFN2, allosterically activates MFN2 and promotes mitochondrial fusion with EC50 of 3 nM.

MFA-1 (Merck FXR agonist 1) is a potent, synthetic FXR agonist with EC50 of 16.9 nM in coactivator recruitment assays, displays 500-fold more potent than CDCA.

MF266-1 is a potent, selective prostaglandin E receptor subtype 1 (EP1) antagonist with Ki of 3.8 nM, displayes a relatively good selectivity over other prostanoid receptors..

Metronidazole Benzoate is the benzoate ester of metronidazole, a synthetic nitroimidazole derivative with antiprotozoal and antibacterial activities.

Metolazone (Zaroxolyn)