Galantamine(Narwedin) is a competitive and reversible cholinesterase(AChE) inhibitor.

Galanthamine hydrobromide is a long-acting, centrally active acetylcholinesterase(AChE) inhibitor (IC50 = 410 nM) and allosteric potentiator at neuronal nicotinic ACh receptors.

GI254023X is a potent MMP9 and ADAM10 inhibitor with IC50s of 2.5 and 5.3 nM, respectively.

GKT137831 is a novel and specific dual Nox1/Nox4 inhibitor with Ki of 140±40 nM and 110±30 nM; a potent inhibitor of fibrosis and hepatocyte apoptosis.

GLX351322 is an inhibitor of NADPH oxidase 4, and inhibits hydrogen peroxide production from NOX4-overexpressing cells with an IC50 of 5 μ M.

GM6001 (galardin, ilomastat) is a broad spectrum MMPs inhibitor for MMP-1, MMP-2, MMP-3, MMP-7, MMP-8, MMP-9, MMP-12, MMP-14, and MMP-26 with Ki of 0.4-27 nM.

GSK256066 is a selective PDE4B(equal affinity to isoforms A-D) inhibitor with IC50 of 3.2 pM, >380,000-fold selectivity versus PDE1/2/3/5/6 and >2500-fold selectivity against PDE4B versus PDE7.

GSK484 is a reversible inhibitor of PAD4 (IC50 = 50 nM) that binds to the low-calcium form of the enzyme.

HET0016 (HET-0016) is a potent, selective inhibitor of CYP4A, potently inhibits the formation of 20-HETE with IC50 of 8.9 nM in human renal microsomes.

Huperzine A, an active Lycopodium alkaloid extracted from traditional Chinese herb, is a potent, selective and reversible acetylcholinesterase (AChE) inhibitor and has been widely used in China for the treatment of Alzheimer's disease (AD).

H-Val-Pro-Pro-OH (TFA), a milk-derived proline peptides derivative, is an inhibitor of Angiotensin I converting enzyme (ACE), with an IC50 of 9 μM.

IBMX(NSC165960; SC2964) is a competitive nonselective PDEs inhibitor with IC50 of 2-50 uM but does not inhibit PDE8 or PDE9; nonselective adenosine receptor antagonist.

IDH305 is an inhibitor of the citric acid cycle enzyme isocitrate dehydrogenase [NADP] cytoplasmic (isocitrate dehydrogenase 1; IDH1) with mutations at residue R132 (IDH1(R132)), with potential antineoplastic activity.

IDH889 is a potent and selective inhibitors of IDH1. IDH899 shows IDH (R132H) IC50 = 20 nM; Cell 2-HG IC50 = 14 nM.

IDO-IN-1 is an indoleamine-2,3-dioxygenase (IDO) inhibitor with IC50 of 59 nM, shows activity in Hela cell (IC50=12 nM).

IDO-IN-2 is an IDO inhibitor extracted from patent WO/2015031295 A1, compound example 1, has IC50 values of 0.068 μM in HeLa cell and 0.16 μM in HEK293 cell.

INCB024360 is a potent IDO1 inhibitor(IC50=10 nM) with desirable pharmaceutical properties, which is poised to start clinical trials in cancer patients.

Irosustat（STX64） is a potent steroid sulfatase inhibitor, with an IC50 of 8 nM, and exhibits anti-breast cancer activity.

Irsogladine maleate is a selective PDE4 inhibitor that facilitates gap junction intercellular communication through muscarinic acetylcholine receptor binding. It is a potent inhibitor of angiogenesis in wild-type and plasminogen activator-deficient mice.

JNJ0966 is a highly selective compound that inhibited activation of MMP-9 zymogen and subsequent generation of catalytically active enzyme.

JNJ-42165279 is a potent and selective inhibitor of the enzyme fatty acid amide hydrolase (FAAH), with an IC50 of 70nM.

JTT-551 (JTT551, JTT 551) is a novel potent, selective inhibitor of protein tyrosine phosphatase 1B (PTP1B) with Ki of 0.22 uM, displays >45-fold and >136-fold selectivity over TCPTP, CD45 and LAR.