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
Shop by category
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
- WAY-22428910mM in DMSO◐ .Made to order · 8–12 wks Item #: W421112View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-(3-bromophenyl)-1,2-dihydro-1,2,4-triazole-3-thione
- SMILES
- C1=CC(=CC(=C1)Br)C2=NC(=S)NN2
- InChIKey
- ALETZOQAGIEADS-UHFFFAOYSA-N
- InChI
- 1S/C8H6BrN3S/c9-6-3-1-2-5(4-6)7-10-8(13)12-11-7/h1-4H,(H2,10,11,12,13)
- Synonyms
- 126651-85-2|5-(3-bromophenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione|5-(3-Bromo-phenyl)-2,4-dihydro-[1,2,4]triazole-3...
- WAY-22558810mM in DMSO● In Stock — US warehouse, ships to EU* Item #: W425401View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-hydroxy-3-(2-naphthalen-2-yl-2-oxoethyl)-1H-indol-2-one
- SMILES
- C1=CC=C2C=C(C=CC2=C1)C(=O)CC3(C4=CC=CC=C4NC3=O)O
- InChIKey
- IVAVELBVHXCUDH-UHFFFAOYSA-N
- InChI
- 1S/C20H15NO3/c22-18(15-10-9-13-5-1-2-6-14(13)11-15)12-20(24)16-7-3-4-8-17(16)21-19(20)23/h1-11,24H,12H2,(H,21,23)
- WAY-227882CAS: 446054-20-2 Formula: C12H11NO5 Molecular Weight: 249.2310mM in DMSO◐ .Made to order · 8–12 wks Item #: W424037View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-[[(2-methylfuran-3-carbonyl)amino]methyl]furan-2-carboxylic acid
- SMILES
- CC1=C(C=CO1)C(=O)NCC2=CC=C(O2)C(=O)O
- InChIKey
- YOBRTNVYCBTSBS-UHFFFAOYSA-N
- InChI
- 1S/C12H11NO5/c1-7-9(4-5-17-7)11(14)13-6-8-2-3-10(18-8)12(15)16/h2-5H,6H2,1H3,(H,13,14)(H,15,16)
- WAY-230563CAS: 93326-70-6 Formula: C17H12N2O2S Molecular Weight: 308.3510mM in DMSO● In Stock — US warehouse, ships to EU* Item #: W426982View ProductPricing & Pack Sizes
Technical Identifiers
- WAY-243197-ACAS: 428850-59-3 Formula: C23H26N2O4S Molecular Weight: 426.5310mM in DMSO◐ .Made to order · 8–12 wks Item #: W423938View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- COC1=CC=C(CN2CCN(CC2)[S](=O)(=O)C3=CC4=C(C=CC=C4)C=C3)C=C1OC
- WAY-243251CAS: 428839-95-6 Formula: C14H19BrN2O4S Molecular Weight: 391.2810mM in DMSO◐ .Made to order · 8–12 wks Item #: W423937View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- CC[S](=O)(=O)N1CCN(CC1)C(=O)COC2=CC=C(Br)C=C2
- WAY-24354510mM in DMSO◐ .Made to order · 8–12 wks Item #: W425929View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-benzyl-3-cyclohexylthiourea
- SMILES
- C1CCC(CC1)NC(=S)NCC2=CC=CC=C2
- InChIKey
- WUJPBZFYSNBQRH-UHFFFAOYSA-N
- InChI
- 1S/C14H20N2S/c17-14(16-13-9-5-2-6-10-13)15-11-12-7-3-1-4-8-12/h1,3-4,7-8,13H,2,5-6,9-11H2,(H2,15,16,17)
- Synonyms
- 1-benzyl-3-cyclohexylthiourea|78080-33-8|3-benzyl-1-cyclohexylthiourea|NSC137936|MLS000712342|CHEMBL1425524|DTXSID109...
- WAY-247443CAS: 331869-91-1 Formula: C17H23N3OS Molecular Weight: 317.4510mM in DMSO◐ .Made to order · 8–12 wks Item #: W423398View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- CC1CCC2=C(C1)SC(=C2C#N)NC(=O)CN3CCCCC3
- WAY-24761510mM in DMSO◐ .Made to order · 8–12 wks Item #: W423655View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 8-(benzylamino)-1-[(2-chlorophenyl)methyl]-3,7-dimethylpurine-2,6-dione
- SMILES
- CN1C2=C(N=C1NCC3=CC=CC=C3)N(C(=O)N(C2=O)CC4=CC=CC=C4Cl)C
- InChIKey
- ZEARGZZIIWJQPN-UHFFFAOYSA-N
- InChI
- 1S/C21H20ClN5O2/c1-25-17-18(24-20(25)23-12-14-8-4-3-5-9-14)26(2)21(29)27(19(17)28)13-15-10-6-7-11-16(15)22/h3-11H,12-13H2,1-2H3,(H,23,24)
- WAY-24767110mM in DMSO● In Stock — US warehouse, ships to EU* Item #: W426338View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[4-[2-(3-ethylphenoxy)ethylsulfanyl]phenyl]acetamide
- SMILES
- CCC1=CC(=CC=C1)OCCSC2=CC=C(C=C2)NC(=O)C
- InChIKey
- RDIKELUCPVDRLU-UHFFFAOYSA-N
- InChI
- 1S/C18H21NO2S/c1-3-15-5-4-6-17(13-15)21-11-12-22-18-9-7-16(8-10-18)19-14(2)20/h4-10,13H,3,11-12H2,1-2H3,(H,19,20)
- WAY-248134CAS: 67795-42-0 EC Number: 154-574-3 PubChem CID: 613528 Formula: C10H11N3OS Molecular Weight: 221.2810mM in DMSO● In Stock — US warehouse, ships to EU* Item #: W425405View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-amino-4,6-dimethylthieno[2,3-b]pyridine-2-carboxamide
- SMILES
- CC1=CC(=NC2=C1C(=C(S2)C(=O)N)N)C
- InChIKey
- SDMLKCQDZJOSDN-UHFFFAOYSA-N
- InChI
- 1S/C10H11N3OS/c1-4-3-5(2)13-10-6(4)7(11)8(15-10)9(12)14/h3H,11H2,1-2H3,(H2,12,14)
- Synonyms
- HMS1440A19 | 3-amino-4,6-dimethyl-thieno[2,3-b]pyridine-2-carboxamide | 3-Amino-4,6-dimethylthieno[2,3-b]pyridine-2-c...
- WAY-24948610mM in DMSO◐ .Made to order · 8–12 wks Item #: W420872View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[2-(4-chlorophenyl)-2-oxoethyl]sulfanyl-4-methyl-1H-pyrimidin-6-one
- SMILES
- CC1=CC(=O)NC(=N1)SCC(=O)C2=CC=C(C=C2)Cl
- InChIKey
- NGNBFAHURVSCGG-UHFFFAOYSA-N
- InChI
- 1S/C13H11ClN2O2S/c1-8-6-12(18)16-13(15-8)19-7-11(17)9-2-4-10(14)5-3-9/h2-6H,7H2,1H3,(H,15,16,18)
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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.