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
- Acephate solutionAnalytical standard ? Analytical standard — certified-purity material for quantitative calibration. Use to prepare calibration standards and validate analytical methods. 100ug/ml in acetone◐ .Made to order · 8–12 wks Item #: A109745View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Acetamidophos | chevronorthene | s-dimethylester, Ortran | Orthene | acetylphosphoramidothioicacido
- Acesulfame Potassium◐ .Made to order · 8–12 wks Item #: A412808View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- [KH].CC1=CC(=O)N[S](=O)(=O)O1
- Absinthin, Agonist of TAS2R30;Agonist of TAS2R46CAS: 1362-42-1 Formula: C30H40O6 Molecular Weight: 496.64Moligand™ ? 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◐ .Made to order · 8–12 wks Item #: A421378View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
- CC1C2CCC(C3C4C5C=C(C6(C4C(=C3C2OC1=O)C)C5C(CCC7C6OC(=O)C7C)(C)O)C)(C)O
- InChIKey
- PZHWYURJZAPXAN-ILOFNVQHSA-N
- InChI
- show more
- Synonyms
- Absinthin | (1R,2R,5S,8S,9S,12S,13R,14S,15S,16R,17S,20S,21S,24S)-12,17-dihydroxy-3,8,12,17,21,25-hexamethyl-6,23-diox...
- Acalabrutinib (ACP-196), Tyrosine-protein kinase BTK inhibitorMoligand™ ? 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 #: A408104View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Benzamide, 4-[8-amino-3-[(2S)-1-(1-oxo-2-butyn-1-yl)-2-pyrrolidinyl]imidazo[1,5-a]pyrazin-1-yl]-�...
- Acesulfame Potassium10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: A407850View ProductPricing & Pack Sizes
Technical Identifiers
- Ac-DEVD-CHO,N-Acetyl-Asp-Glu-Val-Asp-al, Inhibitor of Caspase 3CAS: 169332-60-9 Formula: C20H30N4O11 Molecular Weight: 502.47Moligand™ ? 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◐ .Made to order · 8–12 wks Item #: A422092View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
- CC(C)C(C(=O)NC(CC(=O)O)C=O)NC(=O)C(CCC(=O)O)NC(=O)C(CC(=O)O)NC(=O)C
- InChIKey
- UMBVAPCONCILTL-MRHIQRDNSA-N
- InChI
- show more
- Synonyms
- C20H30N4O11 | acetyl-Asp-Glu-Val-Asp aldehyde | N-acetyl-asp-glu-val-asp-al | s7901 | L-valinamide, N-acetyl-L-alpha-...
- Ac-FLTD-CMKCAS: 2376255-48-8 Formula: C26H37ClN4O8 Molecular Weight: 569.05● In Stock — US warehouse, ships to EU* Item #: A414490View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (3S)-3-[[(2S,3R)-2-[[(2S)-2-[[(2S)-2-acetamido-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]-3-hydroxybutanoyl]amino]-5-chloro-4-oxopentanoic acid
- SMILES
- CC(C)CC(C(=O)NC(C(C)O)C(=O)NC(CC(=O)O)C(=O)CCl)NC(=O)C(CC1=CC=CC=C1)NC(=O)C
- InChIKey
- UCWNTWGHVCSMJP-WPUDHWPRSA-N
- InChI
- show more
- Synonyms
- N-acetyl-Phe-Leu-Thr-Asp-chloromethylketone
- Ac-IEPD-CHOFormula: C22H34N4O9 Molecular Weight: 498.53● In Stock — US warehouse, ships to EU* Item #: A276505View ProductPricing & Pack Sizes
Technical Identifiers
- Abrocitinib (PF-04965842), Inhibitor of Janus kinase 1;Inhibitor of Janus kinase 2Moligand™ ? 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 #: A421972View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[3-[methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]cyclobutyl]propane-1-sulfonamide
- SMILES
- CCCS(=O)(=O)NC1CC(C1)N(C)C2=NC=NC3=C2C=CN3
- InChIKey
- IUEWXNHSKRWHDY-UHFFFAOYSA-N
- InChI
- 1S/C14H21N5O2S/c1-3-6-22(20,21)18-10-7-11(8-10)19(2)14-12-4-5-15-13(12)16-9-17-14/h4-5,9-11,18H,3,6-8H2,1-2H3,(H,15,16,17)
- Synonyms
- Abrocitinib;N-[cis-3-(Methyl-7H-pyrrolo[2,3-d]pyrimidin-4-ylamino)cyclobutyl]-1-propanesulfonamide | N-(3-(Methyl(7H-...
- Ac-Lys-D-Ala-D-Ala-OH● In Stock — US warehouse, ships to EU* Item #: A354204View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2R)-2-[[(2R)-2-[[(2S)-2-acetamido-6-aminohexanoyl]amino]propanoyl]amino]propanoic acid
- SMILES
- CC(C(=O)NC(C)C(=O)O)NC(=O)C(CCCCN)NC(=O)C
- InChIKey
- GMSXMADYKTYBCP-KKZNHRDASA-N
- InChI
- show more
- Synonyms
- DTXSID70951479 | N(2)-Acetyl-L-lysyl-D-alanyl-D-alanine | (R)-2-((R)-2-((S)-2-acetamido-6-aminohexanamido)propanamido...
- Acetaminophen DimerCAS: 98966-14-4 Formula: C16H16N2O4 Molecular Weight: 300.31● In Stock — US warehouse, ships to EU* Item #: A353915View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[3-(5-acetamido-2-hydroxyphenyl)-4-hydroxyphenyl]acetamide
- SMILES
- CC(=O)NC1=CC(=C(C=C1)O)C2=C(C=CC(=C2)NC(=O)C)O
- InChIKey
- PHJCCQZHFLRCAA-UHFFFAOYSA-N
- InChI
- 1S/C16H16N2O4/c1-9(19)17-11-3-5-15(21)13(7-11)14-8-12(18-10(2)20)4-6-16(14)22/h3-8,21-22H,1-2H3,(H,17,19)(H,18,20)
- Synonyms
- N,N'-(6,6'-Dihydroxy(1,1'-biphenyl)-3,3'-diyl)bisacetamide | Acetamide, N,N'-(6,6'-dihydroxy[1,1'-biphenyl]-3,3'-diyl...
- Acetazolamide, Inhibitor of carbonic anhydrase 1;Inhibitor of carbonic anhydrase 12;Inhibitor of carbonic anhydrase 13;Inhibitor of carbonic anhydrase 14;Inhibitor of carbonic anhydrase 4;Inhibitor of carbonic anhydrase 7Liquid 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 #: A424967View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-(5-sulfamoyl-1,3,4-thiadiazol-2-yl)acetamide
- SMILES
- CC(=O)NC1=NN=C(S1)S(=O)(=O)N
- InChIKey
- BZKPWHYZMXOIDC-UHFFFAOYSA-N
- InChI
- 1S/C4H6N4O3S2/c1-2(9)6-3-7-8-4(12-3)13(5,10)11/h1H3,(H2,5,10,11)(H,6,7,9)
- Synonyms
- acetazolamide|59-66-5|Diamox|Acetamox|Nephramide|Glaupax|N-(5-Sulfamoyl-1,3,4-thiadiazol-2-yl)acetamide|Acetazolamid|...
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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.