Explore small molecules, screening libraries, and tool compounds for discovery research. Browse by target, pathway, or ligand family to quickly find inhibitors, agonists, and chemical probes, with searchable structure/CAS data and supporting documents (SDS/COA where available).
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Ready-to-screen compound libraries and focused sets for hit discovery. Browse libraries by target class, pathway, scaffold, or application, and review size, format, and compound information to build screening panels.Customize Your Screening Library to choose compounds, format, and volume, and we’ll prepare a ready-to-use set for you.Customize Your Screening Library
Ligand families
24,635Navigate small molecules by ligand family or scaffold to build focused sets and explore structure–activity relationships. This category groups related chemotypes, helping you select analogs, fragments, and tool molecules for discovery research.
ADC-focused building blocks and tools to support antibody–drug conjugate research. Explore payloads, linkers, conjugation reagents, and related small-molecule components (where available) for designing and evaluating ADC constructs.
PROTAC
2,814PROTAC and targeted protein degradation tools for discovery research. Browse degrader-related ligands, linkers, and building blocks (where available) to assemble or screen PROTAC designs, with clear identifiers for efficient selection.
By Signaling Pathways
102,621Explore pathway-focused tool compounds to study and modulate key signaling cascades. Browse small molecules grouped by signaling pathway to support mechanism studies, phenotypic assays, and target validation, with clear identifiers for fast searching.
By Target (DTO)
19,694Find bioactive small molecules organized by protein target (DTO). Quickly locate tool compounds for specific targets and compare identifiers such as structure, CAS, and synonyms—plus supporting documents —to build screening and validation sets.
By Disease (DOID)
8,779Shop small molecules and tool compounds organized by disease area (DOID). Discover chemical probes, libraries, and related products mapped to therapeutic areas to help assemble compound sets for screening, pathway exploration, and model studies.
Products
- LY2811376, Inhibitor of beta-secretase 1CAS: 1194044-20-6 Formula: C15H14F2N4S Molecular Weight: 320.36Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: L409213View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- (S)-4-(2,4-difluoro-5-(pyrimidin-5-yl)phenyl)-4-methyl-5,6-dihydro-4H-1,3-thiazin-2-amine
- LY2857785CAS: 1619903-54-6 Formula: C26H36N6O Molecular Weight: 448.6● In Stock — US warehouse, ships to EU* Item #: L413766View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-N-[4-(2-methyl-3-propan-2-ylindazol-5-yl)pyrimidin-2-yl]-1-N-(oxan-4-yl)cyclohexane-1,4-diamine
- SMILES
- CC(C)C1=C2C=C(C=CC2=NN1C)C3=NC(=NC=C3)NC4CCC(CC4)NC5CCOCC5
- InChIKey
- LHIUZPIDLZYPRL-UHFFFAOYSA-N
- InChI
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- Synonyms
- (1r,4r)-N1-(4-(3-isopropyl-2-methyl-2H-indazol-5-yl)pyrimidin-2-yl)-N4-(tetrahydro-2H-pyran-4-yl)cyclohexane-1,4-diamine
- LY2584702 TosylateCAS: 1082949-68-5 Formula: C28H27F4N7O3S Molecular Weight: 617.62● In Stock — US warehouse, ships to EU* Item #: L413819View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-[4-[4-[4-fluoro-3-(trifluoromethyl)phenyl]-1-methylimidazol-2-yl]piperidin-1-yl]-1H-pyrazolo[3,4-d]pyrimidine;4-methylbenzenesulfonic acid
- SMILES
- CC1=CC=C(C=C1)S(=O)(=O)O.CN1C=C(N=C1C2CCN(CC2)C3=NC=NC4=C3C=NN4)C5=CC(=C(C=C5)F)C(F)(F)F
- InChIKey
- HDYUXDNMHBQKAU-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- LY-2584702 tosylate salt | 4-[4-[4-[4-Fluoro-3-(trifluoromethyl)phenyl]-1-methyl-1H-imidazol-2-yl]-1-piperidinyl]-1H-...
- LY2584702 TosylateCAS: 1082949-68-5 Formula: C28H27F4N7O3S Molecular Weight: 617.6210mM in DMSO● In Stock — US warehouse, ships to EU* Item #: L420545View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-[4-[4-[4-fluoro-3-(trifluoromethyl)phenyl]-1-methylimidazol-2-yl]piperidin-1-yl]-1H-pyrazolo[3,4-d]pyrimidine;4-methylbenzenesulfonic acid
- SMILES
- CC1=CC=C(C=C1)S(=O)(=O)O.CN1C=C(N=C1C2CCN(CC2)C3=NC=NC4=C3C=NN4)C5=CC(=C(C=C5)F)C(F)(F)F
- InChIKey
- HDYUXDNMHBQKAU-UHFFFAOYSA-N
- InChI
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- Synonyms
- 4-{4-[4-(4-fluoro-3-trifluoromethyl-phenyl)-1-methyl-1H-imidazol-2-yl]-piperidin-1-yl}-1H-pyrazolo[3,4-d]pyrimidine p...
- LY2608204, Hexokinase type IV activatorCAS: 1234703-40-2 Formula: C28H37N3O3S3 Molecular Weight: 559.8110mM in DMSO● In Stock — US warehouse, ships to EU* Item #: L407980View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- (1R,2S)-2-cyclohexyl-1-(4-(cyclopropylsulfonyl)phenyl)-N-(5-(2-(pyrrolidin-1-yl)ethylthio)thiazol-2-yl)cyclopropaneca...
- LY2886721, Inhibitor of beta-secretase 1CAS: 1262036-50-9 Formula: C18H16F2N4O2S Molecular Weight: 390.41Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: L409170View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- N-(3-((4aS,7aS)-2-amino-4a,5,7,7a-tetrahydro-4H-furo[3,4-d][1,3]thiazin-7a-yl)-4-fluorophenyl)-5-fluoropicolinamide
- LY3214996, Mitogen-activated protein kinase; ERK1/ERK2 inhibitorCAS: 1951483-29-6 Formula: C22H27N7O2S Molecular Weight: 453.56Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: L408245View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 4H-Thieno[2,3-c]pyrrol-4-one, 5,6-dihydro-6,6-dimethyl-2-[2-[(1-methyl-1H-pyrazol-5-yl)amino]-4-�...
- LY3295668CAS: 1919888-06-4 Formula: C24H26ClF2N5O2 Molecular Weight: 489.95Solid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥99%◐ .Made to order · 8–12 wks Item #: L414177View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2R,4R)-1-[(3-chloro-2-fluorophenyl)methyl]-4-[[3-fluoro-6-[(5-methyl-1H-pyrazol-3-yl)amino]pyridin-2-yl]methyl]-2-methylpiperidine-4-carboxylic acid
- SMILES
- CC1CC(CCN1CC2=C(C(=CC=C2)Cl)F)(CC3=C(C=CC(=N3)NC4=NNC(=C4)C)F)C(=O)O
- InChIKey
- YQQZZYYQTCPEAS-OYLFLEFRSA-N
- InChI
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- Synonyms
- LY3295668 (AK-01) | Aurora A kinase inhibitor LY3295668 | EG7 | LY3295668 | LY-3295668 | BDBM560668 | UNII-1WX8O5XV4R...
- LY 3200882CAS: 1898283-02-7 Formula: C24H29N5O3 Molecular Weight: 435.52● In Stock — US warehouse, ships to EU* Item #: L414169View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[4-[[4-[1-cyclopropyl-3-(oxan-4-yl)pyrazol-4-yl]oxypyridin-2-yl]amino]pyridin-2-yl]propan-2-ol
- SMILES
- CC(C)(C1=NC=CC(=C1)NC2=NC=CC(=C2)OC3=CN(N=C3C4CCOCC4)C5CC5)O
- InChIKey
- PNPFMWIDAKQFPY-UHFFFAOYSA-N
- InChI
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- Synonyms
- SCHEMBL17645407 | LY 3200882 [WHO-DD] | YAD28302 | HY-103021 | 19HY34R6UN | BCP20882 | UNII-19HY34R6UN | 1898283-02-7...
- LY-3381916CAS: 2166616-75-5 Formula: C23H25FN2O3 Molecular Weight: 396.45● In Stock — US warehouse, ships to EU* Item #: L414268View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-fluoro-N-[(1R)-1-[1-(oxane-4-carbonyl)-2,3-dihydroindol-5-yl]ethyl]benzamide
- SMILES
- CC(C1=CC2=C(C=C1)N(CC2)C(=O)C3CCOCC3)NC(=O)C4=CC=C(C=C4)F
- InChIKey
- NUBWFWVVKLRSHS-OAHLLOKOSA-N
- InChI
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- Synonyms
- s8919 | EX-A4934 | AC-36897 | NSC817042 | NSC-817042 | AKOS040733638 | MS-26689 | BCP33269 | IDO1-IN-5 | SCHEMBL19689...
- LY-3475070CAS: 2375815-63-5 Formula: C15H18N4O2 Molecular Weight: 286.33● In Stock — US warehouse, ships to EU* Item #: L414499View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-[6-methyl-5-[(1S,2R)-2-propan-2-ylcyclopropyl]pyridazin-3-yl]-1H-pyrimidine-2,4-dione
- SMILES
- CC1=NN=C(C=C1C2CC2C(C)C)C3=CNC(=O)NC3=O
- InChIKey
- WHRUIISQCORGKK-KOLCDFICSA-N
- InChI
- 1S/C15H18N4O2/c1-7(2)9-4-11(9)10-5-13(19-18-8(10)3)12-6-16-15(21)17-14(12)20/h5-7,9,11H,4H2,1-3H3,(H2,16,17,20,21)/t9-,11+/m1/s1
- LY2090314, Inhibitor of glycogen synthase kinase 3 betaMoligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: L408214View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 3-(9-fluoro-2-(piperidine-1-carbonyl)-1,2,3,4-tetrahydro-[1,4]diazepino[6,7,1-hi]indol-7-yl)-4-(imidazo[1,2-a]pyridin...












