Aumitin is a novel potent autophagy inhibitor with IC50 of 124 and 244 nM against starvation- and rapamycin- induced autophagy respectively, targets mitochondrial complex I.

Aurantiamide acetate suppresses the growth of malignant gliomas in vitro and in vivo by inhibiting autophagic flux.

Aurintricarboxylic acid (ATA) is a potent small molecule inhibitor of RISC loading with IC50 of 0.47 uM, inhibits RISC activity against transiently expressed reporters and endogenous genes.

Aurora inhibitor 1 is a potent Aurora inhibitor with an IC50 of ≤ 4 nM and ≤13 nM for Aurora A and Aurora B kinase, respectively.

Aurora kinase inhibitor III is a potent inhibitor of Aurora A kinase (IC50 = 42 nM).

AUT-1 is a novel specific, cell permeant modulator of Kv3 channels with EC50 of 4.7 and 4.9 uM for Kv3.1b and Kv3.2a, respectively.

Autotaxin inhibitor 12 is a highly potent, selective, orally-bioavailable inhibitor of autotaxin with IC50 of 3.1 nM in choline release assays.

Autotaxin inhibitor compound 1 (Autotaxin-IN-1) is a potent, selective, orally bioavailable inhibitor of autotaxin with IC50 of 2.2 nM in ex vivo human whole blood assay, does not inhibit related proteins ENPP1 and ENPP7.

Auxin agonist RN3 (RubNeddin 3) is a potent, selective auxin agonist that induces specific AUX/IAA protein degradation to modulate plant development.

Auxin agonist RN4 (RubNeddin 4) is a potent, selective auxin agonist that induces specific AUX/IAA protein degradation to modulate plant development.

AV-412(MP-412) is a potent dual inhibitor of EGFR and ErbB2(IC50=19 nM) tyrosine kinases, including the mutant EGFR(L858R IC50=0.51 nM, T790M IC50=0.79 nM); inhibits autophosphorylation of EGFR and ErbB2 with IC(50) of 43 and 282 nM, respectively.

Avanbulin (BAL27862, BAL-27862) is a novel microtubule-destabilizing agent that potently inhibits tubulin assembly at 37°C with IC50 of 1.4 uM in tubulin-binding assays.

AVE-0118 is a potent I(to)/I(Kur) blocker, Kv1.5 channel inhibitor with IC50 of 5.6 uM, also blocks Kv1.3, Kv2.1, Kv3.1, and Kv4.3 channels with similar potency.

AVG-233 (AVG233) is a potent, allosteric inhibitor of respiratory syncytial virus (RSV) RNA-dependent RNA polymerase (RdRp) complex, demonstrates nanomolar activity against both laboratory-adapted RSV strains and clinical RSV isolates (EC50=34-79 nM).

AVL-292 besylate (Spebrutinib, CC-292) is a highly selective, covalent Btk inhibitor with IC50 of <1 nM.

Avosentan(Ro 67-0565; SPP-301) is a potent, selective endothelin receptor(ETA receptor) antagonist.

AW-814141 is a potent, selective and orally active inhibitor of p38 MAP kinase with IC50 of 100 nM/158 nM for p38α/p38β.

AX-024 is an cytokine release inhibitor which can strongly inhibit the production of interleukin-6 (IL-6), tumor necrosis factor-α (TNFα), interferon-γ (IFN-γ), IL-10 and IL-17A.

AX20017 is a small-molecule protein kinase G (PknG) inhibitor with an IC50 of 0.39 μM.

Axl-IN-21 is a selective and potent inhibitor of wild-type Axl with IC50 of 2.2 nM.

AY 9944 is a specific cholesterol biosynthesis inhibitor. AY 9944 inhibits the 7-dehydro cholesterol Δ7-reductase (DHCR7) enzyme (IC50=13 nM). AY 9944 causes hypocholesterolemia and accumulation of 7DHC. At high doses, AY 9944 inhibits also in cultured embryos sterol Δ7-Δ8 isomerase, which causes the accumulation of cholest-8-en-3β-ol.

AZ 4800 is a potent γ-secretase modulator that reduces Aβ40 and Aβ42 levels in HEK/APPswe cells with IC50 of 26 nM and 60 nM, also decreases Aβ39, whereas increases both Aβ37 and Aβ38..