Lin28-IN-1 is a small-molecule inhibitor of the Lin28/let-7 interaction with IC50 of 4.03 uM.

LIMK1 and 2 dual inhibitor is a potent, selective LIMK1/2 inhibitor with IC50 of <10 nM for both, 15-fold selectivity over B-Raf (IC50=10-100 nM).

Lifirafenib（BGB-283） is a Novel potent and selective RAF Kinase and EGFR inhibitor.

Lidocaine hydrochloride is a local anesthetic and cardiac depressant used as an antiarrhythmia agent.

Licofelone is a dual COX/LOX inhibitor being considered as a treatment for osteoarthritis.

L-Homocysteine thiolactone hydrochloride is an intramolecular thioester of homocysteine; prevents translational incorporation of homocysteine into proteins.

LHF-535 (LHF535, LHF 535) is a small-molecule viral entry inhibitor that targets the arenavirus envelope glycoprotein, exhibits potent antiviral activity against a broad array of hemorrhagic fever arenaviruses with IC50 of 0.1-0.3 nM.

L-Glutamic acid monosodium salt is the sodium salt of glutamic acid, found naturally in tomatoes, cheese and other foods.

L-g-glutamyl-p-nitroanilide hydrochloride is a potent, competitive inhibitor of the neutral amino acid transporter ASCT2 (SLC1A5) with pKa of 13.79.

LGB-321 (LGB321) is a potent and specific pan-Pim inhibitor with Ki of 1/2.1/0.8 pM for Pim1/2/3, respectively.

Levofloxacin is a broad-spectrum, third-generation fluoroquinolone antibiotic and optically active L-isomer of ofloxacin with antibacterial activity.

Levodropropizine is a histamine receptor inhibitor, Levodropropizine is an effective and very well tolerated peripheral antitussive drug.

Leucettamine B is a potent inhibitor of CLK1 (IC50=15 nM), Dyrk1A (IC50=40 nM), and Dyrk2 (IC50=35 nM) and a moderate inhibitor of CLK3 (IC50=4.5 uM)..

Lethal toxin inhibitor DN1 is a small molecule that reduces the cytotoxicity of anthrax lethal toxin (LT) an inhibitor of LT-induced pyroptosis, acts as an antagonist of GPCR receptors type-1 angiotensin II receptor (AGTR1) and apelin receptor (APLNR) wit

Letaxaban (TAK-442, TAK442) is a potent, selective and direct factor Xa (FXa) inhibitor with Ki of 1.8 nM for hFXa, >440-fold selectivity than thrombin and negligible effects on trypsin, plasmin, and tPA.

Lesogaberan (AZD-3355) is a potent, selective, peripherally acting GABAB receptor agonist with Ki of 5 nM and EC50 of 8.6 nM, 274-fold selectivity over GABAA (Ki=1.4 uM).

LEQ 506 (NPV-LEQ 506) is a second-generation inhibitor of Smoothened (Smo) with IC50 of 2 nM and 4 nM for human and mouse Smo, respectively.

LEM-14-1189 is a LEM-14 derivative that differentially inhibits the NSDs with in vitro IC50 of 418 μM (NSD1), IC50 of 111 μM (NSD2) and IC50 of 60 μM (NSD3)..

LEI-105 is a potent, highly selective, and reversible dual DAGL-α/DAGL-β inhibitor with pIC50 pf 7.5/7.4 respectively.

LED209 is a potent QseC inhibitor that blocks both norepinephrine- and epinephrine-triggered QseC-dependent virulence gene expression at 5 pM in vitro.

LDN-76070 is a novel potent SMN2 modulator (EC50=8.3 uM.

LDN-75654 is a novel potent SMN2 modulator (EC50=1.8 uM.

LDN-211904 is an inhibitor of erythropoietin-producing hepatocellular carcinoma (Eph) receptors.

LDN-109657 is a novel SMN2 modulator that increase SMN protein levels in 3813 fibroblasts by twofold at 370 nM..

LDN 91946 is a selective, uncompetitive ubiquitin C-terminal hydrolase-L1 (UCH-L1) inhibitor with Ki of 2.8 uM, exhibits no activity against other cysteine hydrolase (UCH-L3, TGase 2, papain and caspase-3)..

LDK1229 is a novel potent, selective cannabinoid CB1 receptor inverse agonist with Ki of 220 nM.

LDHA-IN-104 is a potent and selective lactate dehydrogenase A (LDHA) inhibitor with IC50 of 0.87 uM, less potent for LDHB (IC50=6.9 uM).

LDD1937 is a novel potent FLT3 inhibitor with IC50 of 3 nM, displays >170-fold selectivity over JAK2/3, c-MET, IRAK-4.

LCS-1.34 is a small molecule that inhibits growth of human lung adenocarcinoma cells harboring mutations in EGFR or KRAS with IC50 of 0.1-1.1 uM.

LCS-1.28 is a small molecule that inhibits growth of human lung adenocarcinoma cells harboring mutations in EGFR or KRAS with IC50 of 0.05-1.6 uM.