AZD9977 is a first-in-class, potent, selective, mineralocorticoid receptor (MR) modulator with IC50 of 0.37. 0.08 and 0.08 uM for human, mouse and rat MR, respectively.

Azeliragon is an oral, small-molecule inhibitor of RAGE.

Azetidine-2-carboxylic acid is a non proteinogenic amino acid homologue of proline. Found in common beets. Azetidine-2-carboxylic acid can be misincorporated into proteins in place of proline in many species, including humans. Toxic and teratogenic agent.

Azilsartan medoxomil is an angiotensin II receptor antagonist indicated for the treatment of mild to moderate essential hypertension.

Azilsartan(TAK-536) is a specific and potent angiotensin II type 1 receptor antagonist with IC50 of 2.6 nM.

Azoramide is a small-molecule modulator of the unfolded protein response with antidiabetic activity.

Azoxystrobin is a systemic, broad-spectrum fungicide belonging to the class of methoxyacrylates,which are derived from the naturally-occurring strobilurins.

Azvudine (RO 0622) is a potent HCV NS5B RNA polymerase inhibitor, inhibits HCV replication in the replicon system with IC50 of 24 nM; inhibits RNA synthesis by HCV polymerases from either HCV genotypes 1a and 1b or containing S96T or S282T point mutations (IC50=10-100 nM).

B02 is a cell-permeable pyridinylvinyl-quinazolinone compound that is shown to specifically inhibit human RAD51 (IC50 = 27.4 µM).

B-973 (B973) is a potent, selective α7 nAChR ago-PAM, denonstrates analgesic effect with attenuating pain behavior and decreasing paw edema in vivo.

Baccatin III is the precursor to paclitaxel/ taxol. Antileukaemic and antitumor agent isolated from the bark of the Pacific yew tree (Taxus breviofolia).

Bafetinib (INNO-406) is a potent and selective dual Bcr-Abl/Lyn inhibitor with IC50 of 5.8 nM and 19 nM, respectively.

Bafilomycin A1 is a vacuolar H+-ATPase inhibitor with IC50 of 0.44 nM.

Balicatib(AAE-581) is a potent and selective inhibitor of cathepsin K; 10-100-fold more potent in cell-based enzyme occupancy assays than against cathepsin B, L, and S.

Balovaptan (RG7314, RG-7314) is a potent, selective vasopressin-1 receptor antagonist..

Baloxavir acid (S-033447) is an anti-influenza compound that potently and selectively inhibits the cap-dependent endonuclease within the polymerase PA subunit of influenza A and B viruses.

Baloxavir marboxil is a prodrug of S-033447. S-033447 is a small molecule inhibitor of the cap-dependent endonuclease of influenza A and B viruses.

BAN ORL 24 is a potent, selective, competitive ORL1 non-peptide agonist. Displays 1000-fold selectivity over classical opioid receptors.

BAPTA/AM is a membrane permeable form of BAPTA, a selective chelator of Ca2+.

BAR501 is a potent and selective agonist of GPBAR1 with an EC50 of 1 μM.

BAR502 is a dual FXR and GPBAR1 agonist with IC50 values of 2 μM and 0.4 μM, respectively.

Bardoxolone methyl (also known as “RTA 402” and “CDDO-methyl ester”) is an orally-available first-in-class synthetic triterpenoid belonging to the antioxidant inflammation modulator (AIM) class.