LY164846 is an orally active cephalosporin. LY164846 is highly sensitive to Haemophilus influenzae (including Ampicillin-resistant strains) and Moraxella catarrhalis (with MIC90 ≤ 4 μg/mL). LY164846 is generally sensitive to Methicillin-resistant Staphylococcus aureus and Streptococcus (except Enterococcus) (with MIC90: 0.25 - 8 μg/mL), and moderately sensitive to anaerobic bacteria. LY164846 has MBC/MIC ratio to Haemophilus influenzae of ≤ 2, showing bactericidal activity. LY164846 can be used for research on respiratory and skin infections.

LY 78335 (DCMB) is a brain-penetrant phenylethanolamine-N-methyltransferase (PNMT) inhibitor with a Ki of 0.09 μM. LY 78335 acts as an α₂-adrenoceptor inhibitor with an IC50 of 10 μM. LY 78335 increases spontaneous locomotor activity in rats. LY 78335 increases extracellular concentration of 3-methoxy-4-hydroxyphenylglycol (MHPG) in rat hypothalamus. LY 78335 prevents growth hormone (GH) secretion in rats. LY 78335 can be used for the research of depression.

LXR modulator-1 (Compound 21/3) is a LXR modulator with an EC50 of less than 100 nM. LXR modulator-1 can be used for studying LXR-mediated diseases such as non-alcoholic fatty liver disease.

LUF7996 is a CCR2 PROTAC Degrader degrading CCR2 with DC50 = 2.6 μM. LUF7996 demonstrates engagement of both and the E3 ligase cereblon and displays sustain and concentration-dependent degradation of CCR2. LUF7996 reliance on the lysosomal pathway to induce CCR2 degradation. LUF7996 efficiently inhibits monocyte migration in virto. (Pink: CCR2 ligand ; Blue: Cereblon ligand ; Black: linker).

LTK-14A, a derivative of Garcinol, is a selective histone butyrylation inhibitor. LTK-14A does not affect acetylation. LTK-14A significantly inhibits the butyrylation of H4K5 and downregulated the expression of proadipogenic genes, thus culminating in abolished adipogenesis. LTK-14A can be used for the study of obesity.

LTD4 antagonist 3 (FK011 hydrochloride) is a LTD4 antagonist. LTD4 antagonist 3 has agonistic activity for PPAR-γ, with a fold-increase of 1.50 at 1 μM and 2.35 at 10 μM. LTD4 antagonist 3 can be used of development of non-steroidal anti-inflammatory drugs (NSAIDs).

LT-104A is a potent PDE4 inhibitor that elevates intracellular cAMP levels (EC50 = 1.9 μM) and inhibits PDE4D3 activity (IC50 = 9.3 μM). LT-104A activates the cAMP-PKA-CREB anti-inflammatory signaling pathway and suppresses NF-κB-related gene expression (Il1b and Nos2). LT-104A can be used for inflammation-related disease research.

LSD1-IN-49 hydrochloride (Compound (±) 1) is an irreversible LSD1/KDM1A inhibitor with an IC50 of 29 nM against hLSD1. LSD1-IN-49 hydrochloride irreversibly inhibits the enzymatic activity of LSD1 by forming an adduct with flavin adenine dinucleotide (FAD) in the binding pocket of LSD1. LSD1-IN-49 hydrochloride is applicable to research related to schizophrenia, autism spectrum disorder and Huntington's disease.

LSD1-IN-49 is a Lysine-specific demethylase 1 (LSD1/KDM1A) inhibitor with a human IC50 of 29 nM. LSD1-IN-49 irreversibly inhibits LSD1 enzyme activity by forming an adduct with the flavin adenine dinucleotide (FAD) cofactor of LSD1. LSD1-IN-49 can be used as a lead compound for the development of LSD1-targeted PET imaging agents for the brain.

LSD1-IN-48 is a tranylcypromine-pyrimidine derivative and selective LSD1 inhibitor with a human IC50 of 7.87 nM. LSD1-IN-48 increases H3K4me1/2 histone methylation levels. LSD1-IN-48 induces apoptosis, upregulates CD86, downregulates SOX2 and CD44, inhibits proliferation in cancer cells. LSD1-IN-48 can be used for the research of acute myeloid leukemia.

LSD1-IN-46 is a potent and orally active Lysine-specific demethylase 1 (LSD1) inhibitor with an IC50 of 0.082 μM. LSD1-IN-46 interrupts the β-catenin-mediated transcriptional program, thereby suppressing the stemness of gastric cancer cells. LSD1-IN-46 exhibits strong anti-tumor activity. LSD1-IN-46 can be used for the research of gastric cancer.

ML161 analog 1 (compound 38) is an analog of ML161. ML161 analog 1 is a selective allosteric inhibitor of PAR1 with an IC50 of 1.68 μM.

LSD1-IN-41 (compound 7) is a potent and selective LSD1 inhibitor. LSD1-IN-41 can be used for diffuse intrinsic pontine glioma (DIPG) research when combined with HDAC inhibitors.

LPA1 receptor antagonist-7 is a LPA1 antagonist. LPA1 receptor antagonist-7 blocks downstream signaling pathways mediated by LPA1. LPA1 receptor antagonist-7 inhibits LPA-induced migration and invasion of cancer cells. LPA1 receptor antagonist-7 can be used for the research of triple-negative breast cancer.

LP-911888 is an orally active ACSL5/ACSL1 inhibitor, with IC50 values of 1 nM and 3 nM against mouse and human ACSL5, and IC50 values of 2 nM and 9 nM against mouse and human ACSL1, respectively. LP-911888 inhibits intestinal triglyceride uptake; it also reduces body weight and food consumption in diet-induced obese mice, and delays gastric emptying by activating the ileal brake pathway. LP-911888 can be used in studies of diet-induced obesity.

LP-371-p is a lipid that can specifically and efficiently deliver oligonucleotide compounds to the fat tissues in the body (especially fat cells). LP-371-p can be used in research on diseases related to fat, such as obesity and type 2 diabetes.

LP293-p is a lipid with activated ester groups, which can be used for the synthesis of ATXN2 RNAi. LP293-p can be utilized to enhance the targeting of the central nervous system (CNS).

Losoxantrone hydrochloride (CI 941 hydrochloride) is a DNA-binding agent. Losoxantrone hydrochloride has broad-spectrum antitumour activity. Losoxantrone hydrochloride induces dose-dependent leukopenia.

Lortalamine (LM 1404) is a selective norepinephrine transporter inhibitor with an IC50 of <1 nM. Lortalamine is a non-tricyclic antidepressant. Lortalamine antagonises Reserpine-induced ptosis and hypothermia. Lortalamine inhibits norepinephrine uptake.

L-Kynurenine-5-F (Compound 2h) is the 5-F derivative of L-Kynurenine.

Lixazinone (RS-82856) hydrogensulfate is a selective inhibitor of cGMP-inhibited phosphodiesterase (PDE3) with an IC50 value of 22 nM. Lixazinone hydrogensulfate exhibits positive inotropic effects, afterload reduction and antithrombotic properties. Lixazinone hydrogensulfate increases cyclic adenosine monophosphate (cAMP) levels in human platelets, inhibits thrombin-induced aggregation of human platelets, and blocks the photolabeling of PDE3 active sites by [32P]cGMP. Lixazinone hydrogensulfate can be used in the research of polycystic kidney disease and congestive heart failure.

Lirexapride is a 5-HT4/Dopamine D2 receptor agonist. Lirexapride stimulants gastrointestinal motor. Lirexapride can be used for research on digestive system disorders.

LIQ1, a flavonoid derivative, is a potent Pyruvate kinase M2 (PKM2) allosteric inhibitor (IC50 = 0.39 μM; Kd = 4.5 μM) targeting Arg43 within the polyarginine pocket. LIQ1 exhibits efficacy in a mouse model of LPS-induced endotoxemia, preventing the nuclear translocation of PKM2 and inhibiting its binding to HIF-1α, thereby suppressing IL-1β transcription. LIQ1 can be used for the research of endotoxemia[1].

LGF308 is a PROTAC degrader of BRD4 that exhibits selective cytotoxicity toward cancer cells over normal cells. LGF308 mediates the formation of a ternary complex between BRD4 and DCAF11 to achieve BRD4 degradation. LGF308 induces tumor cell apoptosis by upregulating apoptosis-related proteins. LGF308 inhibits tumor cell proliferation and migration in breast cancer and triple-negative breast cancer cell lines. LGF308 can be used for the research of breast cancer.

LG190155 is a nonsteroidal vitamin D receptor (VDR) agonist. LG190155 activates VDR in mesenchymal stem cells, thereby upregulating the BMP6-IL6 autocrine axis. Pretreatment of mesenchymal stem cells with LG190155 significantly enhances their ability to induce differentiation of acute myeloid leukemia cells, without inducing hypercalcemia. LG190155 is applicable to research related to acute myeloid leukemia (AML).

Levomequitazine (Compound V0114) ((S)-Mequitazine), the levorotatory enantiomer of Mequitazine, is an orally active, inverse H4 receptor agonist (IC50s: 94 nM (hM2), 17 nM (hM3)). Levomequitazine strongly binds to human histamine H4 receptor. Levomequitazine antagonizes the activating action induced by histamine on H4 receptor. Levomequitazine induces a powerful and statistically significant anti-inflammatory effect. Levomequitazine can be used for research on inflammatory diseases.

Leu-PEG1-Dasa is a potent BCR-ABL PROTAC degrader with a DC50 of 0.48 nM. Leu-PEG1-Dasa uses a single amino acid as the E3 ligand and belongs to a mini-PROTAC, functioning through the N-terminal canonical pathway. Leu-PEG1-Dasa exhibits potent anti-proliferative activity against K562 cells. Leu-PEG1-Dasa can be used for the study of chronic myeloid leukemia (CML). (Pink: Bcr-Abl ligand ; Blue: Ligands for E3 Ligase ligand ; Black: linker).

Lerimazoline is a selective 5-HT1D receptor agonist with Ki values of 72 and 3480 nM for h5-HT1D and h5-HT1B. Lerimazoline inhibits Forskolin-stimulated cAMP production and induces contractions in rabbit saphenous vein preparations. Lerimazoline can be used for the research of migraine.

Lenalidomide-CO-C7-NH2 is a CRBN-dependent intermediate of BET PROTAC degrader. Consisting of the E3 ubiquitin ligase ligand Lenalidomide conjugated with a PROTAC linker, Lenalidomide-CO-C7-NH2 induces the specific degradation of the oncoprotein BRD4. By depleting BRD4, Lenalidomide-CO-C7-NH2 effectively inhibits cancer cell proliferation, induces cell cycle arrest and promotes apoptosis, thereby exhibiting significant anti-tumor activity in xenograft models. Lenalidomide-CO-C7-NH2 serves as an important tool molecule for the study of acute myeloid leukemia.

L-Dopachrome is a nucleoside metabolite.