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).
By Target / Pathway / Disease
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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
- (+)-JQ1 carboxylic acid10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: J422464View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[(9S)-7-(4-chlorophenyl)-4,5,13-trimethyl-3-thia-1,8,11,12-tetrazatricyclo[8.3.0.02,6]trideca-2(6),4,7,10,12-pentaen-9-yl]acetic acid
- SMILES
- CC1=C(SC2=C1C(=NC(C3=NN=C(N32)C)CC(=O)O)C4=CC=C(C=C4)Cl)C
- InChIKey
- LJOSBOOJFIRCSO-AWEZNQCLSA-N
- InChI
- 1S/C19H17ClN4O2S/c1-9-10(2)27-19-16(9)17(12-4-6-13(20)7-5-12)21-14(8-15(25)26)18-23-22-11(3)24(18)19/h4-7,14H,8H2,1-3H3,(H,25,26)/t14-/m0/s1
- Synonyms
- EX-A1891 | MFCD28167916 | BCP20870 | 6H-Thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-6-acetic acid, 4-(4-chlorop...
- (+,-)-Octopamine HCl, Agonist of TA 1 receptorMoligand™ ? 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 #: O408184View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 4-(2-amino-1-hydroxyethyl)phenol hydrochloride
- (+)-Muscarine chlorideSolid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥94%◐ .Made to order · 8–12 wks Item #: M336040View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- [(2S,4R,5S)-4-hydroxy-5-methyloxolan-2-yl]methyl-trimethylazanium;chloride
- SMILES
- C[C@H]1[C@@H](C[C@H](O1)C[N+](C)(C)C)O.[Cl-]
- InChIKey
- WUFRNEJYZWHXLC-CTERPIQNSA-M
- InChI
- 1S/C9H20NO2.ClH/c1-7-9(11)5-8(12-7)6-10(2,3)4;/h7-9,11H,5-6H2,1-4H3;1H/q+1;/p-1/t7-,8-,9+;/m0./s1
- Synonyms
- 1-((2S,4R,5S)-4-hydroxy-5-methyltetrahydrofuran-2-yl)-N,N,N-trimethylmethanaminium chloride | MUSCARINE CHLORIDE [HSDB]
- (-)-Dizocilpine maleateCAS: 121917-57-5 Formula: C20H19NO4 Molecular Weight: 337.37● In Stock — US warehouse, ships to EU* Item #: M129512View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (Z)-but-2-enedioic acid;(1R,9S)-1-methyl-16-azatetracyclo[7.6.1.02,7.010,15]hexadeca-2,4,6,10,12,14-hexaene
- SMILES
- CC12C3=CC=CC=C3CC(N1)C4=CC=CC=C24.C(=CC(=O)O)C(=O)O
- InChIKey
- QLTXKCWMEZIHBJ-FWHYOZOBSA-N
- InChI
- show more
- Synonyms
- (5R,10S)-(-)-5-Methyl-10,11-dihydro -5H-dibenzo[a,d]cylcohepten-5,10-imine maleate | (5S,10R)-(+)-5-Methyl-10,11-dihy...
- (-)-DonepezilCAS: 142057-80-5 Formula: C24H29NO3 Molecular Weight: 379.49◐ .Made to order · 8–12 wks Item #: D332795View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[(1-benzylpiperidin-4-yl)methyl]-5,6-dimethoxy-2,3-dihydroinden-1-one
- SMILES
- COC1=C(C=C2C(=C1)CC(C2=O)CC3CCN(CC3)CC4=CC=CC=C4)OC
- InChIKey
- ADEBPBSSDYVVLD-UHFFFAOYSA-N
- InChI
- 1S/C24H29NO3/c1-27-22-14-19-13-20(24(26)21(19)15-23(22)28-2)12-17-8-10-25(11-9-17)16-18-6-4-3-5-7-18/h3-7,14-15,17,20H,8-13,16H2,1-2H3
- Synonyms
- NSC 737535 | DONEPEZIL [MI] | (RS)-2-[(1-BENZYL-4-PIPERIDYL)METHYL]-5,6-DIMETHOXYINDAN-1-ONE | 8SSC91326P | SCHEMBL82...
- (-)-Epigallocatechin Gallate, Inhibitor of dual specificity tyrosine phosphorylation regulated kinase 1A;Inhibitor of E1A binding protein p300;Agonist of TAS2R5;Inhibitor of lysine acetyltransferase 2BLiquid 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 DMSO● In Stock — US warehouse, ships to EU* Item #: E409009View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- EGCG | Benzoic acid, 3,4,5-trihydroxy-, (2R,3R)-3,4-dihydro-5,7-dihydroxy-2-(3,4,5-trihydroxyphenyl)-2H-1-benzopyran-...
- (-)-JQ-1CAS: 1268524-71-5 Formula: C23H25ClN4O2S Molecular Weight: 456.9910mM in DMSO● In Stock — US warehouse, ships to EU* Item #: J421114View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- tert-butyl 2-[(9R)-7-(4-chlorophenyl)-4,5,13-trimethyl-3-thia-1,8,11,12-tetrazatricyclo[8.3.0.02,6]trideca-2(6),4,7,10,12-pentaen-9-yl]acetate
- SMILES
- CC1=C(SC2=C1C(=NC(C3=NN=C(N32)C)CC(=O)OC(C)(C)C)C4=CC=C(C=C4)Cl)C
- InChIKey
- DNVXATUJJDPFDM-QGZVFWFLSA-N
- InChI
- 1S/C23H25ClN4O2S/c1-12-13(2)31-22-19(12)20(15-7-9-16(24)10-8-15)25-17(11-18(29)30-23(4,5)6)21-27-26-14(3)28(21)22/h7-10,17H,11H2,1-6H3/t17-/m1/s1
- Synonyms
- 1268524-71-5|(R)-(-)-JQ1 Enantiomer|(-)-JQ1|(-)-JQ-1|(R)-JQ1|6H-Thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-6-a...
- (-)-BlebbistatinCAS: 856925-71-8 EC Number: 689-630-0 PubChem CID: 5287792 Formula: C18H16N2O2 Molecular Weight: 292.3310mM in DMSO● In Stock — US warehouse, ships to EU* Item #: B408138View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- (S)-(-)-Blebbistatin | 4H-Pyrrolo[2,3-b]quinolin-4-one, 1,2,3,3a-tetrahydro-3a-hydroxy-6-methyl-1-phenyl-, (3aS)-
- (-)-Quinpirole hydrochlorideCAS: 85798-08-9 Formula: C13H21N3•HCl Molecular Weight: 255.79Solid 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 #: Q287690View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (4aR,8aR)-5-propyl-1,4,4a,6,7,8,8a,9-octahydropyrazolo[3,4-g]quinoline;hydrochloride
- SMILES
- CCCN1CCCC2C1CC3=C(C2)NN=C3.Cl
- InChIKey
- HJHVRVJTYPKTHX-HTMVYDOJSA-N
- InChI
- 1S/C13H21N3.ClH/c1-2-5-16-6-3-4-10-7-12-11(8-13(10)16)9-14-15-12;/h9-10,13H,2-8H2,1H3,(H,14,15);1H/t10-,13-;/m1./s1
- Synonyms
- MS-23606 | CCG-222294 | QUINPIROLE HYDROCHLORIDE | DTXSID8045519 | SMR000326933 | (-)-LY 171555 | LY 171555 | Tox21_5...
- (-)-Scopolamine hydrobromide trihydrateCAS: 6533-68-2 EC Number: 613-776-6 PubChem CID: 20055509 Formula: C17H21NO4·HBr·3H2O Molecular Weight: 438.31Liquid 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 DMSO● In Stock — US warehouse, ships to EU* Item #: S425304View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- [(1S,2S,4R,5R)-9-methyl-3-oxa-9-azatricyclo[3.3.1.02,4]nonan-7-yl] (2S)-3-hydroxy-2-phenylpropanoate;trihydrate;hydrobromide
- SMILES
- CN1C2CC(CC1C3C2O3)OC(=O)C(CO)C4=CC=CC=C4.O.O.O.Br
- InChIKey
- LACQPOBCQQPVIT-CQPQIMGBSA-N
- InChI
- show more
- Synonyms
- SCOPOLAMINE HYDROBROMIDE TRIHYDRATE|Hyoscine hydrobromide trihydrate|Scopolamine hydrobromide|(-)-Scopolamine hydrobr...
- (-)-Bicuculline methiodideSolid 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 #: B286983View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (6R)-6-[(5S)-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;iodide
- SMILES
- C[N+]1(CCC2=CC3=C(C=C2C1C4C5=C(C6=C(C=C5)OCO6)C(=O)O4)OCO3)C.[I-]
- InChIKey
- HKJKCPKPSSVUHY-GRTNUQQKSA-M
- InChI
- show more
- Synonyms
- (+)-Bicuculline methiodide | (S)-6,6-dimethyl-5-((R)-8-oxo-6,8-dihydroisobenzofuro[5,4-d][1,3]dioxol-6-yl)-5,6,7,8-te...
- (-)-U-50488 hydrochlorideCAS: 114528-79-9 PubChem CID: 9931141 Formula: C19H26Cl2N2O · HCl · xH2O Molecular Weight: 405.79 (anhydrous basis)● In Stock — US warehouse, ships to EU* Item #: U287110View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(3,4-dichlorophenyl)-N-methyl-N-[(1S,2S)-2-pyrrolidin-1-ylcyclohexyl]acetamide;hydrochloride
- SMILES
- CN(C1CCCCC1N2CCCC2)C(=O)CC3=CC(=C(C=C3)Cl)Cl.Cl
- InChIKey
- KGMMGVIYOHGOKQ-APTPAJQOSA-N
- InChI
- 1S/C19H26Cl2N2O.ClH/c1-22(19(24)13-14-8-9-15(20)16(21)12-14)17-6-2-3-7-18(17)23-10-4-5-11-23;/h8-9,12,17-18H,2-7,10-11,13H2,1H3;1H/t17-,18-;/m0./s1
- Synonyms
- trans-(1S,2S)-3,4-Dichloro-N-methyl-N-[2-(1-pyrrolidinyl)cyclohexyl]benzeneacetamide hydrochloride hydrate | (−)-tran...
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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.