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
102,622Explore 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)
19,695Find 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)
8,779Shop 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
- Soluble beta cyclodextrin polymerCAS: 25655-42-9 Formula: C9H17ClO7 Molecular Weight: 272.68BioReagent ? BioReagent grade — tested suitable for life-science and molecular-biology use. Use for cell culture, assays, and biochemical work needing biological compatibility.● In Stock — US Item #: S303244View ProductPricing & Pack Sizes
Technical Identifiers
- Somatostatin● In Stock — US Item #: S275022View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
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- InChIKey
- NHXLMOGPVYXJNR-UHFFFAOYSA-N
- InChI
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- Synonyms
- AGCKNFFWKTFTSC (modifications: Disulfide bridge between 3 - 14) | AKOS015896026 | BCA11001 | SCHEMBL3046327 | SOMATOS...
- EpoxiconazoleCAS: 106325-08-0 Formula: C17H13ClFN3O Molecular Weight: 329.76● In Stock — US Item #: E276054View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-[[(2S,3R)-3-(2-chlorophenyl)-2-(4-fluorophenyl)oxiran-2-yl]methyl]-1,2,4-triazole
- SMILES
- C1=CC=C(C(=C1)C2C(O2)(CN3C=NC=N3)C4=CC=C(C=C4)F)Cl
- InChIKey
- ZMYFCFLJBGAQRS-IAGOWNOFSA-N
- InChI
- 1S/C17H13ClFN3O/c18-15-4-2-1-3-14(15)16-17(23-16,9-22-11-20-10-21-22)12-5-7-13(19)8-6-12/h1-8,10-11,16H,9H2/t16-,17-/m1/s1
- Synonyms
- CHEBI:4811 | ZMYFCFLJBGAQRS-IAGOWNOFSA-N | 1-((3-(2-Chlorophenyl)-2-(4-fluorophenyl)oxiranyl)methyl)-1H-1,2,4-triazol...
- HA14-1CAS: 65673-63-4 Formula: C17H17BrN2O5 Molecular Weight: 409.23Solid ≥98%● In Stock — US Item #: H126914View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- ethyl 2-amino-6-bromo-4-(1-cyano-2-ethoxy-2-oxoethyl)-4H-chromene-3-carboxylate
- SMILES
- CCOC(=O)C1=C(OC2=C(C1C(C#N)C(=O)OCC)C=C(C=C2)Br)N
- InChIKey
- SXJDCULZDFWMJC-UHFFFAOYSA-N
- InChI
- 1S/C17H17BrN2O5/c1-3-23-16(21)11(8-19)13-10-7-9(18)5-6-12(10)25-15(20)14(13)17(22)24-4-2/h5-7,11,13H,3-4,20H2,1-2H3
- Synonyms
- 2-amino-6-bromo-4-(1-cyano-2-ethoxy-2-oxoethyl)-4H-1-benzopyran-3-carboxylic acid ethyl ester | NCGC00025207-02 | NCG...
- Methylidintri-p-phenylen triisocyanateLiquid 20% in Chlorobenzene● In Stock — US Item #: M303165View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 1,1',1''-Methylidynetris[4-isocyanato-benzene;Triphenylmethane-4,4',4''-triisocyanate;Tris(4-isocyanatophenyl)methane
- Stat3 Peptide Inhibitor◐ .Made to order · 8–12 wks Item #: S274783View ProductPricing & Pack Sizes
Technical Identifiers
- Stat5 Inhibitor● In Stock — US Item #: S339995View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[(E)-(4-oxochromen-3-yl)methylideneamino]pyridine-3-carboxamide
- SMILES
- C1=CC=C2C(=C1)C(=O)C(=CO2)C=NNC(=O)C3=CN=CC=C3
- InChIKey
- DAVIKTBRCQWOGT-GIJQJNRQSA-N
- InChI
- 1S/C16H11N3O3/c20-15-12(10-22-14-6-2-1-5-13(14)15)9-18-19-16(21)11-4-3-7-17-8-11/h1-10H,(H,19,21)/b18-9+
- Synonyms
- STAT5-IN-1
- StatticCAS: 19983-44-9 EC Number: 633-746-6 PubChem CID: 2779853 Formula: C8H5NO4S Molecular Weight: 211.19Solid 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 Item #: S129623View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 6-nitro-1-benzothiophene 1,1-dioxide
- SMILES
- C1=CC(=CC2=C1C=CS2(=O)=O)[N+](=O)[O-]
- InChIKey
- ZRRGOUHITGRLBA-UHFFFAOYSA-N
- InChI
- 1S/C8H5NO4S/c10-9(11)7-2-1-6-3-4-14(12,13)8(6)5-7/h1-5H
- Synonyms
- C8H5NO4S | FT-0621264 | HY-13818 | PB27460 | CCG-222352 | DTXSID70381575 | EC-000.2451 | HMS556B22 | 6-nitro-1lambda6...
- Guanosine 3',5'-cyclic monophosphate sodium salt (cGMP)CAS: 40732-48-7 Formula: C10H11N5NaO7P Molecular Weight: 367.19Solid ≥99%● In Stock — US Item #: G276529View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- sodium;9-[(4aR,6R,7R,7aS)-7-hydroxy-2-oxido-2-oxo-4a,6,7,7a-tetrahydro-4H-furo[3,2-d][1,3,2]dioxaphosphinin-6-yl]-2-amino-1H-purin-6-one
- SMILES
- C1C2C(C(C(O2)N3C=NC4=C3N=C(NC4=O)N)O)OP(=O)(O1)[O-].[Na+]
- InChIKey
- KMPIYXNEROUNOG-GWTDSMLYSA-M
- InChI
- show more
- Synonyms
- BDBM11316 | Guanosine Monophosphate Monosodium Salt | Q27265640 | 6WYT1TNR45 | Guanosine-3':5'-cyclic monophosphate m...
- Ibuprofen Lysine, Cyclooxygenase inhibitorCAS: 57469-77-9 Formula: C19H32N2O4 Molecular Weight: 352.47● In Stock — US Item #: I129329View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2S)-2,6-diaminohexanoic acid;2-[4-(2-methylpropyl)phenyl]propanoic acid
- SMILES
- CC(C)CC1=CC=C(C=C1)C(C)C(=O)O.C(CCN)CC(C(=O)O)N
- InChIKey
- IHHXIUAEPKVVII-ZSCHJXSPSA-N
- InChI
- 1S/C13H18O2.C6H14N2O2/c1-9(2)8-11-4-6-12(7-5-11)10(3)13(14)15;7-4-2-1-3-5(8)6(9)10/h4-7,9-10H,8H2,1-3H3,(H,14,15);5H,1-4,7-8H2,(H,9,10)/t;5-/m.0/s1
- Synonyms
- HY-100586 | L-LYSINE, MONO(.ALPHA.-METHYL-4-(2-METHYLPROPYL)BENZENEACETATE) | Solufenum | L-Lysine mono(4-isobutyl-al...
- Thalidomide-OHCAS: 5054-59-1 Formula: C13H10N2O5 Molecular Weight: 274.23● In Stock — US Item #: T303826View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(2,6-dioxopiperidin-3-yl)-4-hydroxyisoindole-1,3-dione
- SMILES
- C1CC(=O)NC(=O)C1N2C(=O)C3=C(C2=O)C(=CC=C3)O
- InChIKey
- XMPJICVFSDYOEG-UHFFFAOYSA-N
- InChI
- 1S/C13H10N2O5/c16-8-3-1-2-6-10(8)13(20)15(12(6)19)7-4-5-9(17)14-11(7)18/h1-3,7,16H,4-5H2,(H,14,17,18)
- Synonyms
- SY233142 | 4-hydroxy-2-(2,6-dioxo(3-piperidyl))isoindoline-1,3-dione | US11059801, Compound D-1 | ZKA69498 | 2-(2,6-d...
- Imetit dihydrobromide● In Stock — US Item #: I274625View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(1H-imidazol-5-yl)ethyl carbamimidothioate;dihydrobromide
- SMILES
- C1=C(NC=N1)CCSC(=N)N.Br.Br
- InChIKey
- DOBOYMKCRRLTRF-UHFFFAOYSA-N
- InChI
- 1S/C6H10N4S.2BrH/c7-6(8)11-2-1-5-3-9-4-10-5;;/h3-4H,1-2H2,(H3,7,8)(H,9,10);2*1H
- Synonyms
- HY-101173 | SCHEMBL7974417 | Tox21_500645 | Carbamimidothioic acid,2-(1H-imidazol-5-yl)ethyl ester | Oleato de monoet...
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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.