Betahistine is a strong affinity histamine H3 receptor antagonist and weak affinity agonist of histamine H1 receptors.

Beta-Lapachone is a selective DNA topoisomerase I inhibitor, exhibiting no inhibitory activities against DNA topoisomerase II or ligase. Phase 2.

beta-secretase inhibitor.

BETd-260 (ZBC260, BETd260) is a novel PROTAC BET degrader that tether HJB97 to a ligand for the E3 ubiquitin ligase VHL.

Betrixaban (PRT-054021) is a highly potent, selective, and orally efficacious factor Xa inhibitor with IC50 of 1.2 nM(inhibition of Factor 10a).

Betrixaban (PRT-054021) is a highly potent, selective, and orally efficacious factor Xa inhibitor with IC50 of 1.2 nM(inhibition of Factor 10a).

Betulinic acid, a pentacyclic triterpene, selectively induces apoptosis in tumor cells, also is a inhibitor of HIV-1 with EC50 of 1.4 μ M.

Betulonic acid has anti-cancer , anti-HIV,hepatoprotective and anti-inflammatory activities, it has antiviral activity against herpes simplex virus, it also suppresses ECHO 6 virus reproduction.

Bevirimat(YK FH312; FH11327; MPC-4326) is an anti-HIV drug derived from a betulinic acid-like compound; is believed to inhibit HIV by a novel mechanism, so-called maturation inhibition.

Bexagliflozin is a potent and selective SGLT2 inhibitor with IC50 value of 5.6 μM /2 nM in SGLT1 /SGLT2 respectively.

BEZ235 (NVP-BEZ235) is a dual ATP-competitive PI3K and mTOR inhibitor of p110α, p110γ, p110δ and p110β with IC50 of 4 nM, 5 nM, 7 nM and 75 nM, respectively, and also inhibits ATR with IC50 of 21 nM.

BEZ235 (NVP-BEZ235) is a dual ATP-competitive PI3K and mTOR inhibitor of p110α, p110γ, p110δ and p110β with IC50 of 4 nM, 5 nM, 7 nM and 75 nM, respectively, and also inhibits ATR with IC50 of 21 nM.

BF 227 is a candidate for an amyloid imaging probe for PET, with a Ki of 4.3 nM for Aβ1-42 fibrils.

BFH772 is a potent oral VEGFR2 inhibitor, which is highly effective at targeting VEGFR2 kinase with an IC50 value of 3 nM.

BG45 is an HDAC class I inhibitor with selectivity for HDAC3 (IC50 = 289 nM). It inhibits HDAC1, HDAC2, and HDAC6 with greatly reduced potency (IC50s = 2, 2.2, and >20 µM, respectively).

BGG463 can inhibit c-ABL-T334I, BCR-ABL and BCR-ABL-T315I variants with a 50% inhibitory concentration (IC50) of 0.25 μM, 0.09 μM and 0.590 μM, respectively.

BGJ398 (NVP-BGJ398) is a potent and selective FGFR inhibitor for FGFR1/2/3 with IC50 of 0.9 nM/1.4 nM/1 nM, >40-fold selective for FGFR versus FGFR4 and VEGFR2, and little activity to Abl, Fyn, Kit, Lck, Lyn and Yes. Phase 2.

BGP-15 is a PARP inhibitor and insulin sensitizer.

BH3I-1 is a cell permeable BH3 mimetic that binds to Bcl-xL. BH3I-1 is an inhibitor of Bcl-xL.

BI 1467335 (PXS-4728A, PXS-4728) is a potent, selective, orally active SSAO/VAP-1 (AOC3) inhibitor with IC50 of 5 nM; displays >500-fold selective for VAP-1/SSAO over all the related human amine oxidases; diminishes leukocyte rolling and adherence induced by CXCL1/KC, also inhibits the migration of neutrophils to the lungs in response to LPS, Klebsiella pneumoniae lung infection and CLP induced sepsis.

BI 167107 is a highly potent agonist of the β2 adrenergic receptor (β2AR) and β1AR (IC50=3.2 nM) and shows some activity as α1A antagonist (IC50 = 32 nM).

BI 409306 is an inhibitor of phosphodisterase 9A（PDE9A）.