Isosilybin is a flavanolignan found in the extract of S. marianum fruits with antioxidant and anticancer activities.It inhibits lipid peroxidation in rat liver microsomes (IC50 = 32 μM) and reduces ADP/Fe3+-induced malondialdehyde (MDA) production and lac

Isosteviol is a derivative of stevioside, a constituent of Stevia rebaudiana, which is commonly used as a noncaloric sugar substitute in Japan and Brazil.

Isovitexin, a food phytochemical contained in dietary rice products, it exhibits in vivo α-glucosidase inhibition, it possesses antihyperglycemic, neuroprotective, anti-inflammatory and anti-oxidant activities. Isovitexin inhibited xanthine oxidase with a

Ispinesib (SB 715992) is a potent mitotic kinesin KSP (Eg5) inhibitor with a Ki and an IC50 of 0.6 and 4.1 nM, respectively.

ISRIB (trans-isomer), the trans-isomer of ISRIB, is a potent and selective PERK inhibitor with IC50 of 5 nM.

iST2-2 is a novel ST2 (suppression of tumorigenicity 2) inhibitor active in vivo.

Istradefylline(KW6002) is a very potent, selective and orally active adenosine A2A receptor antagonist(Ki=2.2 nM) in experimental models of Parkinson's disease.

ISX-9 is a small molecule inducer of adult neural stem cell differentiation both in vitro and in vivo.

It is a novel inhibitor of HIPK2 with an IC50 of 74 nM and Kd of 9.5 nM.

IT 901 is a c-Rel inhibitor (IC50 = 3 μM). Inhibits IL-2 expression in activated T-cells in vitro.

IT1t dihydrochloride is a potent CXCR4 antagonist; inhibits CXCL12/CXCR4 interaction with an IC50 of 2.1 nM.

Itacitinib is a potent and selective inhibitor of JAK1, with >20-fold selectivity for JAK1 over JAK2 and >100-fold over JAK3 and TYK2; Itacitinib is used in the research of myelofibrosis.

ITD-1 is a novel and highly selective TGFβ pathway inhibitor. ITD-1 molecule turns stem cells into heart cells.

ITI-214 is a potent, selective phosphodiesterase 1 (PDE1) inhibitor with Ki of 58 pM, displays >1,000-fold selectivity over PDE4A/4D and other PDE isoforms.

ITSA-1 (ITSA1) is an HDAC activator via TSA suppression, but shows no activity towards other HDAC inhibitors.

ITX-5061 is a scavenger receptor B1 antagonist that promotes high-density lipoprotein (HDL) levels.

IU1 is a selective USP14 inhibitor. IU1 prevents ventilator-induced lung injury in rats.

IU1-47 is a potent, selective small-molecule inhibitor of USP14 with IC50 of 0.6 uM, shows 10-fold more potent over IU1 and retains specificity for USP14; accelerates the rate of degradation of wild-type tau, the pathological tau mutants P301L and P301S, and the A152T tau variant in primary neuronal cultures, a specific residue in tau, lysine 174, is critical for the IU1-47-mediated tau degradation by the proteasome; stimulates autophagic flux in primary neurons.

Ivabradine, a new If inhibitor with IC 50 of 2.9 μM which acts specifically on the pacemaker activity of the sinoatrial node, is a pure heart rate lowering agent.

Ivacaftor (VX-770, Kalydeco) is a potentiator of CFTR targeting G551D-CFTR and F508del-CFTR with EC50 of 100 nM and 25 nM, respectively.

IWP L6 is a Porcn inhibitor with EC50 of 0.5 nM.

IWP-2 is an inhibitor of Wnt processing and secretion with IC50 of 27 nM, selective blockage of Porcn-mediated Wnt palmitoylation, does not affect Wnt/β-catenin in general and displays no effect against Wnt-stimulated cellular responses.