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
- Isoallolithocholic acid10mM in DMSO◐ Made to order · 8–12 wks Item #: I655547View ProductPricing & Pack Sizes
Technical Identifiers
- Tromantadine hydrochloride10mM in DMSO◐ Made to order · 8–12 wks Item #: T655556View ProductPricing & Pack Sizes
Technical Identifiers
- RSV604 racemate10mM in DMSO◐ Made to order · 8–12 wks Item #: R655533View ProductPricing & Pack Sizes
Technical Identifiers
- NelociguatLiquid 10mM in DMSO◐ Made to order · 8–12 wks Item #: N655530View ProductPricing & Pack Sizes
Technical Identifiers
- PF-6683324CAS: 1799788-94-5 EC Number: 110-753-8 PubChem CID: 118189484 Formula: C24H23F4N5O4 Molecular Weight: 521.4610mM in DMSO◐ Made to order · 8–12 wks Item #: P655549View ProductPricing & Pack Sizes
Technical Identifiers
- CSN5i-310mM in DMSO◐ Made to order · 8–12 wks Item #: C655519View ProductPricing & Pack Sizes
Technical Identifiers
- TT3CAS: 1821214-50-9 Formula: C90H174N6O3 Molecular Weight: 1388.38Liquid 10mM in DMSO◐ Made to order · 8–12 wks Item #: T655550View ProductPricing & Pack Sizes
Technical Identifiers
- CCR2 antagonist 4CAS: 226226-39-7 Formula: C21H21ClF3N3O2 Molecular Weight: 439.8610mM in DMSO◐ Made to order · 8–12 wks Item #: C655523View ProductPricing & Pack Sizes
Technical Identifiers
- 5'-O-DMT-N4-Bz-5-Me-dCLiquid 10mM in DMSO◐ Made to order · 8–12 wks Item #: O655561View ProductPricing & Pack Sizes
Technical Identifiers
- TaltobulinLiquid 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: T655576View ProductPricing & Pack Sizes
Technical Identifiers
- TLK117Liquid 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◐ Made to order · 8–12 wks Item #: T655572View ProductPricing & Pack Sizes
Technical Identifiers
- PhellopterinCAS: 2543-94-4 Formula: C17H16O5 Molecular Weight: 300.3110mM in DMSO◐ Made to order · 8–12 wks Item #: P655770View 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.