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
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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
24,639Navigate 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
- Dehydrocorydaline (hydroxyl)Formula: C22H25NO5 Molecular Weight: 383.44◐ Made to order · 8–12 wks Item #: D658915View ProductPricing & Pack Sizes
Technical Identifiers
- FITC-labeled TominersenMolecular Weight: 7654◐ Made to order · 8–12 wks Item #: F658916View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- [FITC-labeled Tominersen]
- Syntide 2 TFAFormula: C70H123N20F3O20 Molecular Weight: 1621.84Solid ≥95%◐ Made to order · 8–12 wks Item #: S658938View ProductPricing & Pack Sizes
Technical Identifiers
- MopivabilFormula: C14H20O3 Molecular Weight: 236.31◐ Made to order · 8–12 wks Item #: M658940View ProductPricing & Pack Sizes
Technical Identifiers
- JAK2/FLT3-IN-1 TFAFormula: C27H35F4N7O3 Molecular Weight: 581.61◐ Made to order · 8–12 wks Item #: J658941View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- OCCN(C1CCN(C2=CC=C(NC3=NC=C(C)C(C4=CN(C(C)C)N=C4)=N3)C=C2F)CC1)C.O=C(O)C(F)(F)F
- hsa-miR-31-5p mimicMolecular Weight: 13384◐ Made to order · 8–12 wks Item #: H658951View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- [hsa-miR-31-5p mimic]
- Dabigatran-d4hydrochlorideFormula: C25H22D4ClN7O3 Molecular Weight: 512◐ Made to order · 8–12 wks Item #: D659053View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- N=C(N)C(C([2H])=C1[2H])=C([2H])C([2H])=C1NCC2=NC(C=C3C(N(CCC(O)=O)C4=NC=CC=C4)=O)=C(C=C3)N2C.Cl
- MPP hydrochlorideFormula: C29H32ClN3O3 Molecular Weight: 506.04◐ Made to order · 8–12 wks Item #: M659049View ProductPricing & Pack Sizes
Technical Identifiers
- Semaglutide TFAFormula: C189H292F3N45O61 Molecular Weight: 4227.66◐ Made to order · 8–12 wks Item #: S659061View ProductPricing & Pack Sizes
Technical Identifiers
- BTK inhibitor 18Formula: C29H25N5O4S2 Molecular Weight: 571.67◐ Made to order · 8–12 wks Item #: B659062View ProductPricing & Pack Sizes
Technical Identifiers
- RTI-13951-33 hydrochlorideFormula: C28H35Cl2N3O3 Molecular Weight: 532.5◐ Made to order · 8–12 wks Item #: R659056View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- COCC1=CC=C(C2=CC=C(N(C[C@@H](N)[C@@H](C)OC)C([C@H]3[C@H](C4=CC=CC=N4)C3)=O)C=C2)C=C1.Cl.Cl
- Benzethonium-d7chlorideFormula: C27H35D7ClNO2 Molecular Weight: 455.12◐ Made to order · 8–12 wks Item #: B659066View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- CC(C)(C)CC(C1=CC=C(OCCOCC[N+](C)(C)C([2H])([2H])C2=C([2H])C([2H])=C([2H])C([2H])=C2[2H])C=C1)(C)C.[Cl-]
Fast Shipping Same-day shipping on in-stock items
Technical Details Quality & specification info on every product page
Pack Size Options Multiple packaging sizes with pricing access from listing
R&D Use Only Products supplied for research and development use
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.