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
24,672Navigate 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
102,686Explore 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)
19,733Find 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 (where available)—to build screening and validation sets.
By Disease (DOID)
8,799Shop 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.
Popular Products
- Sulforhodamine 101 cadaverine trifluoroacetic salt◐ .Made to order · 8–12 wks Item #: S276083View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
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- InChIKey
- WNCWCKPLSRPVRY-UHFFFAOYSA-N
- InChI
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- Synonyms
- 9-[2(or4)-[[(5-Aminopentyl)amino]sulfonyl]-4(or2)-sulfophenyl]-2,3,6,7,12,13,16,17-octahydro-1H,5H,11H,15H-xantheno[2...
- Hydroxy BupropionMoligand™ ? 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 #: H341159View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(3-chlorophenyl)-3,5,5-trimethylmorpholin-2-ol
- SMILES
- CC1C(OCC(N1)(C)C)(C2=CC(=CC=C2)Cl)O
- InChIKey
- RCOBKSKAZMVBHT-UHFFFAOYSA-N
- InChI
- 1S/C13H18ClNO2/c1-9-13(16,17-8-12(2,3)15-9)10-5-4-6-11(14)7-10/h4-7,9,15-16H,8H2,1-3H3
- Synonyms
- FT-0669438 | 2-(3-CHLOROPHENYL)-3,5,5-TRIMETHYLMORPHOLIN-2-OL | Hydroxy Bupropion | AS-6162 | 2-(3-Chlorophenyl)-3,5,...
- Ethyl 9H-perfluorononanoateCAS: 1799-47-9 Formula: C11H6F16O2 Molecular Weight: 474.14● In Stock — US warehouse, ships to EU* Item #: E331025View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- ethyl 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9-hexadecafluorononanoate
- SMILES
- CCOC(=O)C(C(C(C(C(C(C(C(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F
- InChIKey
- HRSRZMSDVRJBEZ-UHFFFAOYSA-N
- InChI
- 1S/C11H6F16O2/c1-2-29-4(28)6(16,17)8(20,21)10(24,25)11(26,27)9(22,23)7(18,19)5(14,15)3(12)13/h3H,2H2,1H3
- Synonyms
- FT-0626157 | ethyl 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9-hexadecakis(fluoranyl)nonanoate | DTXSID40371923 | 2,2,3,3,4,4,5,5...
- K-252cSolid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%◐ .Made to order · 8–12 wks Item #: K276286View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3,13,23-triazahexacyclo[14.7.0.02,10.04,9.011,15.017,22]tricosa-1,4,6,8,10,15,17,19,21-nonaen-12-one
- SMILES
- C1C2=C3C4=CC=CC=C4NC3=C5C(=C2C(=O)N1)C6=CC=CC=C6N5
- InChIKey
- MEXUTNIFSHFQRG-UHFFFAOYSA-N
- InChI
- 1S/C20H13N3O/c24-20-17-12(9-21-20)15-10-5-1-3-7-13(10)22-18(15)19-16(17)11-6-2-4-8-14(11)23-19/h1-8,22-23H,9H2,(H,21,24)
- Synonyms
- BRD-K93879806-001-01-4 | SCHEMBL5440281 | 3,13,23-triazahexacyclo[14.7.0.0^{2,10}.0^{4,9}.0^{11,15}.0^{17,22}]tricosa...
- δ-3 Cefaclor● In Stock — US warehouse, ships to EU* Item #: C354658View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid
- SMILES
- C1=CC=C(C=C1)C(C(=O)NC2C3N(C2=O)C(C(=CS3)Cl)C(=O)O)N
- InChIKey
- UPMVPDSZPOOATN-ULZUWYFZSA-N
- InChI
- 1S/C15H14ClN3O4S/c16-8-6-24-14-10(13(21)19(14)11(8)15(22)23)18-12(20)9(17)7-4-2-1-3-5-7/h1-6,9-11,14H,17H2,(H,18,20)(H,22,23)/t9-,10-,11?,14-/m1/s1
- Synonyms
- 5-Thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid, 7-[(aminophenylacetyl)amino]-3-chloro-8-oxo-, [6R-[6alpha,7bet...
- δ2-Cefuroxime● In Stock — US warehouse, ships to EU* Item #: C355950View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (6R,7R)-3-(carbamoyloxymethyl)-7-[[(2Z)-2-(furan-2-yl)-2-methoxyiminoacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid
- SMILES
- CON=C(C1=CC=CO1)C(=O)NC2C3N(C2=O)C(C(=CS3)COC(=O)N)C(=O)O
- InChIKey
- AIEMBSSBMKFDGU-YNZZGVKBSA-N
- InChI
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- Synonyms
- (6R,7R)-3-(carbamoyloxymethyl)-7-[[(2Z)-2-(furan-2-yl)-2-methoxyiminoacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oc...
- Ethyl biphenyl-2-carboxylateCAS: 19926-49-9 Formula: C15H14O2 Molecular Weight: 226.275● In Stock — US warehouse, ships to EU* Item #: E330600View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- ethyl 2-phenylbenzoate
- SMILES
- CCOC(=O)C1=CC=CC=C1C2=CC=CC=C2
- InChIKey
- MWQIUPALMQMOSD-UHFFFAOYSA-N
- InChI
- 1S/C15H14O2/c1-2-17-15(16)14-11-7-6-10-13(14)12-8-4-3-5-9-12/h3-11H,2H2,1H3
- Synonyms
- MFCD00671951 | DTXSID10432838 | MWQIUPALMQMOSD-UHFFFAOYSA-N | Biphenyl-2-carboxylic acid ethyl ester | BS-50295 | Eth...
- 1-Tetradecyl isothiocyanate● In Stock — US warehouse, ships to EU* Item #: T332602View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-isothiocyanatotetradecane
- SMILES
- CCCCCCCCCCCCCCN=C=S
- InChIKey
- PMVOXLZEOLARED-UHFFFAOYSA-N
- InChI
- 1S/C15H29NS/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-16-15-17/h2-14H2,1H3
- Synonyms
- SCHEMBL330890 | FT-0634729 | DTXSID50185997 | myristyl isothiocyanate | GEO-03397 | 1-Isothiocyanatotetradecane # | T...
- 1-Thiazol-5-yl-ethanone● In Stock — US warehouse, ships to EU* Item #: T332088View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-(1,3-thiazol-5-yl)ethanone
- SMILES
- CC(=O)C1=CN=CS1
- InChIKey
- DBNLYQBYTOYCGO-UHFFFAOYSA-N
- InChI
- 1S/C5H5NOS/c1-4(7)5-2-6-3-8-5/h2-3H,1H3
- Synonyms
- Ethanone, 1-(5-thiazolyl)- | EN300-79140 | SB39884 | SCHEMBL299024 | 1-(5-thiazolyl)ethanone | 1-(Thiazol-5-yl)ethano...
- Ethylene Diamine Dihydrochloride-d4CAS: 34334-71-9 Formula: C2H6D4Cl2N2 Molecular Weight: 137.04Solid ≥98%(CP),≥98 atom% D● In Stock — US warehouse, ships to EU* Item #: E357542View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1,1,2,2-tetradeuterioethane-1,2-diamine;dihydrochloride
- SMILES
- C(CN)N.Cl.Cl
- InChIKey
- OHHBFEVZJLBKEH-RIZDZYNXSA-N
- InChI
- 1S/C2H8N2.2ClH/c3-1-2-4;;/h1-4H2;2*1H/i1D2,2D2;;
- Synonyms
- 1,1,2,2-tetradeuterioethane-1,2-diamine | Ethylene-d4-diamine dihydrochloride | D97903 | Ethylene Diamine Dihydrochlo...
- Sparteine Sulfate◐ .Made to order · 8–12 wks Item #: S358177View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 7,15-diazatetracyclo[7.7.1.02,7.010,15]heptadecane;sulfuric acid
- SMILES
- C1CCN2CC3CC(C2C1)CN4C3CCCC4.OS(=O)(=O)O
- InChIKey
- FCEHFCFHANDXMB-UHFFFAOYSA-N
- InChI
- 1S/C15H26N2.H2O4S/c1-3-7-16-11-13-9-12(14(16)5-1)10-17-8-4-2-6-15(13)17;1-5(2,3)4/h12-15H,1-11H2;(H2,1,2,3,4)
- Synonyms
- AKOS000120423 | 7,15-diazatetracyclo[7.7.1.02,7.010,15]heptadecane;sulfuric acid | SCHEMBL636202 | Sparteine, sulfate...
- N₃-PEG₃-CH₂CH₂COOtBuCAS: 252881-73-5 Formula: C13H25N3O5 Molecular Weight: 303.35Liquid ≥97%● In Stock — US warehouse, ships to EU* Item #: N122164View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- tert-butyl 3-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]propanoate
- SMILES
- CC(C)(C)OC(=O)CCOCCOCCOCCN=[N+]=[N-]
- InChIKey
- QUSLQIYNPWASRR-UHFFFAOYSA-N
- InChI
- 1S/C13H25N3O5/c1-13(2,3)21-12(17)4-6-18-8-10-20-11-9-19-7-5-15-16-14/h4-11H2,1-3H3
- Synonyms
- 3-[2-[2-(2-Azidoethoxy)ethoxy]ethoxy]propanoic acid 1,1-dimethylethyl ester
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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.