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).
Targets & Pathways
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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
24,639Navigate 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
2,815PROTAC 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
102,615Explore 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
- (-)-Bicuculline methochlorideCAS: 53552-05-9 Formula: C21H20ClNO6 Molecular Weight: 417.84◐ .Made to order · 8–12 wks Item #: B276008View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (6S)-6-[(5R)-6,6-dimethyl-7,8-dihydro-5H-[1,3]dioxolo[4,5-g]isoquinolin-6-ium-5-yl]-6H-furo[3,4-g][1,3]benzodioxol-8-one;chloride
- SMILES
- C[N+]1(CCC2=CC3=C(C=C2C1C4C5=C(C6=C(C=C5)OCO6)C(=O)O4)OCO3)C.[Cl-]
- InChIKey
- RLJKFAMYSYWMND-VOMIJIAVSA-M
- InChI
- show more
- Synonyms
- d-Bicuculline (methochloride) | (a^?-Bicuculline methochloride | (6S)-6-[(5R)-6,6-dimethyl-7,8-dihydro-5H-[1,3]dioxol...
- Amyloid β Protein Fragment 1-42,TFACAS: 107761-42-2(free base) Formula: C203H311N55O60S(free base) Molecular Weight: 4514.04(free base)Solid ≥95%● In Stock — US warehouse, ships to EU* Item #: A494432View ProductPricing & Pack Sizes
Technical Identifiers
- Adenosine triphosphate (ATP)Liquid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. 10mM in Water● In Stock — US warehouse, ships to EU* Item #: A580292View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- [[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl] phosphono hydrogen phosphate
- SMILES
- C1=NC(=C2C(=N1)N(C=N2)C3C(C(C(O3)COP(=O)(O)OP(=O)(O)OP(=O)(O)O)O)O)N
- InChIKey
- ZKHQWZAMYRWXGA-KQYNXXCUSA-N
- InChI
- show more
- Synonyms
- Adenosine triphosphate|56-65-5|Adenosine 5'-triphosphate|ATP|Triphosphaden|adenosine-5'-triphosphate|Myotriphos|Stria...
- Bictegravir Sodium, Human immunodeficiency virus type 1 integrase inhibitor● In Stock — US warehouse, ships to EU* Item #: B419984View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- sodium;(1S,11R,13R)-3,6-dioxo-7-[(2,4,6-trifluorophenyl)methylcarbamoyl]-12-oxa-2,9-diazatetracyclo[11.2.1.02,11.04,9]hexadeca-4,7-dien-5-olate
- SMILES
- C1CC2CC1N3C(O2)CN4C=C(C(=O)C(=C4C3=O)[O-])C(=O)NCC5=C(C=C(C=C5F)F)F.[Na+]
- InChIKey
- WJNFBIVCQMPPJC-FQYDJHLKSA-M
- InChI
- show more
- Synonyms
- A904622 | NCGC00159452-05 | 1807988-02-8 | BICTEGRAVIR SODIUM [WHO-DD] | GS-9883; GS 9883; GS9883; GS-9883-01; GS9883...
- Baloxavir, Polymerase acidic protein inhibitorCAS: 1985605-59-1 Formula: C24H19F2N3O4S Molecular Weight: 483.49● In Stock — US warehouse, ships to EU* Item #: B419991View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- C1COCC2N1C(=O)C3=C(C(=O)C=CN3N2C4C5=C(CSC6=CC=CC=C46)C(=C(C=C5)F)F)O
- InChIKey
- FIDLLEYNNRGVFR-CTNGQTDRSA-N
- InChI
- show more
- Synonyms
- AC-31577 | (12aR)-12-[(11S)-7,8-Difluoro-6,11-dihydrodibenzo[b,E]thiepin-11-yl]-7-hydroxy-3,4,12,12a-tetrahydro-1H-[1...
- 2,6-Bis[1-[2-(tert-butylphenyl)imino]ethyl]pyridineCAS: 204203-17-8 Formula: C29H35N3 Molecular Weight: 425.61● In Stock — US warehouse, ships to EU* Item #: B477160View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-(2-tert-butylphenyl)-1-[6-[N-(2-tert-butylphenyl)-C-methylcarbonimidoyl]pyridin-2-yl]ethanimine
- SMILES
- CC(=NC1=CC=CC=C1C(C)(C)C)C2=NC(=CC=C2)C(=NC3=CC=CC=C3C(C)(C)C)C
- InChIKey
- MDJXUNXXZJTMDW-UHFFFAOYSA-N
- InChI
- 1S/C29H35N3/c1-20(30-26-16-11-9-14-22(26)28(3,4)5)24-18-13-19-25(32-24)21(2)31-27-17-12-10-15-23(27)29(6,7)8/h9-19H,1-8H3
- 2-amino-5-(trifluoromethoxy)benzoic acidSolid ≥98%● In Stock — US warehouse, ships to EU* Item #: A133609View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-amino-5-(trifluoromethoxy)benzoic acid
- SMILES
- C1=CC(=C(C=C1OC(F)(F)F)C(=O)O)N
- InChIKey
- UXNGDCBPIGOZFO-UHFFFAOYSA-N
- InChI
- 1S/C8H6F3NO3/c9-8(10,11)15-4-1-2-6(12)5(3-4)7(13)14/h1-3H,12H2,(H,13,14)
- Synonyms
- 2-amino-5-(trifluoromethoxy)benzoic Acid | SCHEMBL1046271 | 2-Amino-5-trifluoromethoxybenzoic acid | 2-amino-5-triflu...
- Aceclidine HydrochlorideSolid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%● In Stock — US warehouse, ships to EU* Item #: A134700View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-azabicyclo[2.2.2]octan-3-yl acetate;hydrochloride
- SMILES
- CC(=O)OC1CN2CCC1CC2.Cl
- InChIKey
- LWWSARSTZGNKGV-UHFFFAOYSA-N
- InChI
- 1S/C9H15NO2.ClH/c1-7(11)12-9-6-10-4-2-8(9)3-5-10;/h8-9H,2-6H2,1H3;1H
- Synonyms
- Aceclidine hydrochloride | NCGC00356967-01 | SR-01000597817 | Q27256986 | SPECTRUM1500137 | SR-01000597817-1 | DTXSID...
- Fluorescein dibenzoateCAS: 7262-40-0 Formula: C34H20O7 Molecular Weight: 540.52● In Stock — US warehouse, ships to EU* Item #: F597560View ProductPricing & Pack Sizes
Technical Identifiers
- BU 224 hydrochlorideCAS: 205437-64-5 Formula: C12H11N3.HCl Molecular Weight: 233.7● In Stock — US warehouse, ships to EU* Item #: B492867View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(4,5-dihydro-1H-imidazol-2-yl)quinoline;hydrochloride
- SMILES
- C1CN=C(N1)C2=NC3=CC=CC=C3C=C2.Cl
- InChIKey
- DDFHQXAQWZWRSQ-UHFFFAOYSA-N
- InChI
- 1S/C12H11N3.ClH/c1-2-4-10-9(3-1)5-6-11(15-10)12-13-7-8-14-12;/h1-6H,7-8H2,(H,13,14);1H
- Synonyms
- BU224 (hydrochloride) | CCG-221471 | SR-01000075255 | DTXSID901019114 | HY-101170 | SR-01000075255-1 | BU 224 hydroch...
- Bradykinin Fragment 1-5，TFACAS: 23815-89-6(free base) Formula: C27H40N8O6 • xCF3COOH Molecular Weight: 572.66(free base)◐ .Made to order · 8–12 wks Item #: B498752View ProductPricing & Pack Sizes
Technical Identifiers
- BusulfanMoligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥95%● In Stock — US warehouse, ships to EU* Item #: B573218View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-methylsulfonyloxybutyl methanesulfonate
- SMILES
- CS(=O)(=O)OCCCCOS(=O)(=O)C
- InChIKey
- COVZYZSDYWQREU-UHFFFAOYSA-N
- InChI
- 1S/C6H14O6S2/c1-13(7,8)11-5-3-4-6-12-14(2,9)10/h3-6H2,1-2H3
- Synonyms
- DTXSID3020910 | 2041 C. B. | BUSULFAN [VANDF] | Mielosan | Tetramethylene {bis[methanesulfonate]} | TETRAMETHYLENE DI...
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Frequently Asked Questions
What does the By Target/Pathway/Disease listing cover?
It groups compounds associated with targets in By Target/Pathway/Disease, organised so you can move from the pathway to an individual target and then to a specific chemotype. Each entry carries structure, CAS number, and reported activity.
How is By Target/Pathway/Disease organised?
By Target/Pathway/Disease is broken down into Compound Libraries, PROTACs, molecular glues and other degraders and Antibody-drug Conjugates(ADC). Compounds acting on more than one node appear under each relevant target.
How do I choose compounds for By Target/Pathway/Disease research?
For By Target/Pathway/Disease, pick a well-characterised reference compound for the node you want to perturb, and pair it with a structurally unrelated compound hitting the same target — that is the cleanest way to separate pathway effects from off-target ones. Check potency, selectivity, and cell permeability against your assay format. All products are supplied for professional research and development use only, and are not for use in humans, animals, diagnostics, or therapy.
How do I find a specific compound within By Target/Pathway/Disease?
Search By Target/Pathway/Disease by compound name, CAS number, or SMILES, or drill down through the target listing. Unlisted compounds and bulk quantities: [email protected]. We supply verified businesses, research institutions, universities, and government agencies.