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
- NFF-3 TFAFormula: C80H111F3N22O22 Molecular Weight: 1789.87◐ Made to order · 8–12 wks Item #: N659317View ProductPricing & Pack Sizes
Technical Identifiers
- PROTAC BET degrader-3Formula: C53H64N12O9S Molecular Weight: 1045.22◐ Made to order · 8–12 wks Item #: P659321View ProductPricing & Pack Sizes
Technical Identifiers
- hsa-miR-21-5p mimicMolecular Weight: 14037.4◐ Made to order · 8–12 wks Item #: H659316View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- [hsa-miR-21-5p mimic]
- Melittin TFAFormula: C132H230F3N39O33 Molecular Weight: 2960.48◐ Made to order · 8–12 wks Item #: M659330View ProductPricing & Pack Sizes
Technical Identifiers
- GLP1 (1-37), human TFAFormula: C188H276N51F3O61 Molecular Weight: 4283.5◐ Made to order · 8–12 wks Item #: G659328View ProductPricing & Pack Sizes
Technical Identifiers
- Flagelin 22 TFAFormula: C95H163F3N32O36 Molecular Weight: 2386.5◐ Made to order · 8–12 wks Item #: F659335View ProductPricing & Pack Sizes
Technical Identifiers
- HTH-01-091 TFAFormula: C28H29Cl2F3N4O4 Molecular Weight: 613.46◐ Made to order · 8–12 wks Item #: H659342View ProductPricing & Pack Sizes
Technical Identifiers
- CL097 hydrochlorideFormula: C13H15ClN4O Molecular Weight: 278.74◐ Made to order · 8–12 wks Item #: C659344View ProductPricing & Pack Sizes
Technical Identifiers
- GW806742X hydrochlorideFormula: C25H23ClF3N7O4S Molecular Weight: 610.01◐ Made to order · 8–12 wks Item #: G659343View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- [H]Cl.O=S(C1=CC=CC(NC2=NC=CC(N(C)C3=CC=C(NC(NC4=CC=C(OC(F)(F)F)C=C4)=O)C=C3)=N2)=C1)(N)=O
- NGR peptide TrifluoroacetateFormula: C22H37F3N10O10S2 Molecular Weight: 722.72◐ Made to order · 8–12 wks Item #: N659337View ProductPricing & Pack Sizes
Technical Identifiers
- TP508 TFAFormula: C99H147N28F3O38S Molecular Weight: 2426.46◐ Made to order · 8–12 wks Item #: T659453View ProductPricing & Pack Sizes
Technical Identifiers
- GLP-1(7-36), amide TFAFormula: C151H227F3N40O47 Molecular Weight: 3411.65◐ Made to order · 8–12 wks Item #: G659462View ProductPricing & Pack Sizes
Technical Identifiers
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.