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
- BalofloxacinCAS: 127294-70-6 Formula: C20H24FN3O4 Molecular Weight: 389.42Solid ≥98%● In Stock — US Item #: B129359View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-cyclopropyl-6-fluoro-8-methoxy-7-[3-(methylamino)piperidin-1-yl]-4-oxoquinoline-3-carboxylic acid
- SMILES
- CNC1CCCN(C1)C2=C(C=C3C(=C2OC)N(C=C(C3=O)C(=O)O)C4CC4)F
- InChIKey
- MGQLHRYJBWGORO-UHFFFAOYSA-N
- InChI
- 1S/C20H24FN3O4/c1-22-11-4-3-7-23(9-11)17-15(21)8-13-16(19(17)28-2)24(12-5-6-12)10-14(18(13)25)20(26)27/h8,10-12,22H,3-7,9H2,1-2H3,(H,26,27)
- Synonyms
- Q 35 | (+-)-1-Cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-(3-(methylamino)piperidino)-4-oxo-3-quinolinecarboxylic ac...
- Rosuvastatin-d3 sodium salt◐ .Made to order · 8–12 wks Item #: R341344View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- sodium;(E,3R,5S)-7-[4-(4-fluorophenyl)-2-[methylsulfonyl(trideuteriomethyl)amino]-6-propan-2-ylpyrimidin-5-yl]-3,5-dihydroxyhept-6-enoate
- SMILES
- CC(C)C1=NC(=NC(=C1C=CC(CC(CC(=O)[O-])O)O)C2=CC=C(C=C2)F)N(C)S(=O)(=O)C.[Na+]
- InChIKey
- RGEBGDYYHAFODH-SYRJKFITSA-M
- InChI
- show more
- Synonyms
- (3R,5S,6E)-7-[4-(4-Fluorophenyl)-6-(1-methylethyl)-2-[methyl(methylsulfonyl-d3)amino]-5-pyrimidinyl]-3,5-dihydroxy-6-...
- 6,2',4'-Trimethoxyflavone● In Stock — US Item #: T288163View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(2,4-dimethoxyphenyl)-6-methoxychromen-4-one
- SMILES
- COC1=CC2=C(C=C1)OC(=CC2=O)C3=C(C=C(C=C3)OC)OC
- InChIKey
- WUWFDVDASNSUKP-UHFFFAOYSA-N
- InChI
- 1S/C18H16O5/c1-20-11-5-7-16-14(8-11)15(19)10-18(23-16)13-6-4-12(21-2)9-17(13)22-3/h4-10H,1-3H3
- Synonyms
- 2',4',6-trimethoxyflavone | BDBM93448 | ST057638 | FT-0750678 | HY-103220 | AKOS024282698 | Flavonid, 6[4,2] | 2-(2,4...
- JTE 907● In Stock — US Item #: J287409View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-(1,3-benzodioxol-5-ylmethyl)-7-methoxy-2-oxo-8-pentoxy-1H-quinoline-3-carboxamide
- SMILES
- CCCCCOC1=C(C=CC2=C1NC(=O)C(=C2)C(=O)NCC3=CC4=C(C=C3)OCO4)OC
- InChIKey
- GRAJFFFXJYFVOC-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- JTE907 | JTE-907 | PDSP2_000758 | N-(1,3-Benzodioxole-5-ylmethyl)-2-oxo-7-methoxy-8-pentoxy-1,2-dihydro-3-quinolineca...
- Ro 25-6981 MaleateSolid ≥98%● In Stock — US Item #: R274967View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-[(1R,2S)-3-(4-benzylpiperidin-1-yl)-1-hydroxy-2-methylpropyl]phenol;(Z)-but-2-enedioic acid
- SMILES
- CC(CN1CCC(CC1)CC2=CC=CC=C2)C(C3=CC=C(C=C3)O)O.C(=CC(=O)O)C(=O)O
- InChIKey
- FYJZEHCQSUBZDY-SEELMCCHSA-N
- InChI
- show more
- Synonyms
- 4-[(1R,2S)-3-(4-benzylpiperidin-1-yl)-1-hydroxy-2-methylpropyl]phenol | Ro 25-6981 maleate salt | 1-Piperidinepropano...
- Mono-(6-triethylenetetramine-6-deoxy)-β-cyclodextrin● In Stock — US Item #: M304289View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- C(CNCCNCCNCC1C2C(C(C(O1)OC3C(OC(C(C3O)O)OC4C(OC(C(C4O)O)OC5C(OC(C(C5O)O)OC6C(OC(C(C6O)O)OC7C(OC(C(C7O)O)OC8C(OC(O2)C(C8O)O)CO)CO)CO)CO)CO)CO)O)O)N
- InChIKey
- HROGENJBMJHDFH-IHHCOHTPSA-N
- InChI
- show more
- Y-33075, Rho-associated protein kinase inhibitor◐ .Made to order · 8–12 wks Item #: Y125409View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-[(1R)-1-aminoethyl]-N-(1H-pyrrolo[2,3-b]pyridin-4-yl)benzamide
- SMILES
- CC(C1=CC=C(C=C1)C(=O)NC2=C3C=CNC3=NC=C2)N
- InChIKey
- JTVBXQAYBIJXRP-SNVBAGLBSA-N
- InChI
- 1S/C16H16N4O/c1-10(17)11-2-4-12(5-3-11)16(21)20-14-7-9-19-15-13(14)6-8-18-15/h2-10H,17H2,1H3,(H2,18,19,20,21)/t10-/m1/s1
- Synonyms
- CHEMBL571948|(R)-4-(1-aminoethyl)-N-(1H-pyrrolo[2,3-b]pyridin-4-yl)benzamide
- Ro 31-8220 Mesylate● In Stock — US Item #: R129394View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- methanesulfonic acid;3-[3-[4-(1-methylindol-3-yl)-2,5-dioxopyrrol-3-yl]indol-1-yl]propyl carbamimidothioate
- SMILES
- CN1C=C(C2=CC=CC=C21)C3=C(C(=O)NC3=O)C4=CN(C5=CC=CC=C54)CCCSC(=N)N.CS(=O)(=O)O
- InChIKey
- SAWVGDJBSPLRRB-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- Ro-31-8220 mesylate | RO31-8220 mesylate | SW219301-1 | SCHEMBL2491726 | Bisindolylmaleimide IX mesylate | Bisindolyl...
- Ro 60-0175 fumarateCAS: 169675-09-6 EC Number: 663-193-6 PubChem CID: 6446435 Formula: C11H12ClFN2.C4H4O4 Molecular Weight: 342.75◐ .Made to order · 8–12 wks Item #: R286817View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (E)-but-2-enedioic acid;(2S)-1-(6-chloro-5-fluoroindol-1-yl)propan-2-amine
- SMILES
- CC(CN1C=CC2=CC(=C(C=C21)Cl)F)N.C(=CC(=O)O)C(=O)O
- InChIKey
- CEPHEXXZGQBXGT-XZTIXWOLSA-N
- InChI
- 1S/C11H12ClFN2.C4H4O4/c1-7(14)6-15-3-2-8-4-10(13)9(12)5-11(8)15;5-3(6)1-2-4(7)8/h2-5,7H,6,14H2,1H3;1-2H,(H,5,6)(H,7,8)/b;2-1+/t7-;/m0./s1
- Synonyms
- Ro 60-0175 fumarate | 1H-Indole-1-ethanamine, 6-chloro-5-fluoro-alpha-methyl-, (alphaS)-, (2E)-2-butenedioate (1:1) |...
- 6-Acetyl-1,1,2,4,4,7-HexamethyltetralinSolid ≥98%● In Stock — US Item #: A302955View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-(3,5,5,6,8,8-hexamethyl-6,7-dihydronaphthalen-2-yl)ethanone
- SMILES
- CC1CC(C2=C(C1(C)C)C=C(C(=C2)C(=O)C)C)(C)C
- InChIKey
- DNRJTBAOUJJKDY-UHFFFAOYSA-N
- InChI
- 1S/C18H26O/c1-11-8-16-15(9-14(11)13(3)19)17(4,5)10-12(2)18(16,6)7/h8-9,12H,10H2,1-7H3
- Synonyms
- 1-(3,5,5,6,8,8-hexamethyl-5,6,7,8-tetrahydronaphthalen-2-yl)ethan-1-one | 5-benzyloxy-2-hydroxymethyl-4-oxo-4H-pyran ...
- YE 120● In Stock — US Item #: Y288874View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[3-cyano-5-(3,4-dichlorophenyl)-4,5-dimethylfuran-2-ylidene]propanedinitrile
- SMILES
- CC1=C(C(=C(C#N)C#N)OC1(C)C2=CC(=C(C=C2)Cl)Cl)C#N
- InChIKey
- RSWZFAPYKOARNG-UHFFFAOYSA-N
- InChI
- 1S/C16H9Cl2N3O/c1-9-12(8-21)15(10(6-19)7-20)22-16(9,2)11-3-4-13(17)14(18)5-11/h3-5H,1-2H3
- Synonyms
- 2-[3-Cyano-5-(3,4-dichloro-phenyl)-4,5-dimethyl-5H-furan-2-ylidene]-malononitrile | 2-[3-cyano-5-(3,4-dichlorophenyl)...
- Ethyl 3,4-DihydroxybenzoateSolid ≥98%● In Stock — US Item #: E133835View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- ethyl 3,4-dihydroxybenzoate
- SMILES
- CCOC(=O)C1=CC(=C(C=C1)O)O
- InChIKey
- KBPUBCVJHFXPOC-UHFFFAOYSA-N
- InChI
- 1S/C9H10O4/c1-2-13-9(12)6-3-4-7(10)8(11)5-6/h3-5,10-11H,2H2,1H3
- Synonyms
- F0001-1109 | Trimellitic anhydride acid chloride | Tox21_113836 | W-106433 | XV6ER0C1DT | Protocatechuic acid ethyl e...
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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.