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
24,635Navigate 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
102,621Explore 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
- NU 9056CAS: 1450644-28-6 Formula: C6H4N2S4 Molecular Weight: 232.37● In Stock — US warehouse, ships to EU* Item #: N276485View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-(1,2-thiazol-5-yldisulfanyl)-1,2-thiazole
- SMILES
- C1=C(SN=C1)SSC2=CC=NS2
- InChIKey
- MLRAMCAHIWHWRM-UHFFFAOYSA-N
- InChI
- 1S/C6H4N2S4/c1-3-7-9-5(1)11-12-6-2-4-8-10-6/h1-4H
- Synonyms
- 5-(1,2-Thiazol-5-yldisulfanyl)-1,2-thiazole
- NU1025CAS: 90417-38-2 Formula: C9H8N2O2 Molecular Weight: 176.17● In Stock — US warehouse, ships to EU* Item #: H136756View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 8-hydroxy-2-methyl-3H-quinazolin-4-one
- SMILES
- CC1=NC2=C(C=CC=C2O)C(=O)N1
- InChIKey
- YJDAOHJWLUNFLX-UHFFFAOYSA-N
- InChI
- 1S/C9H8N2O2/c1-5-10-8-6(9(13)11-5)3-2-4-7(8)12/h2-4,12H,1H3,(H,10,11,13)
- Synonyms
- BRD-K48692744-001-01-2 | NCGC00390481-01 | NCI60_034479 | X5ZL2C7V9B | Q27093640 | CCG-266404 | PARP Inhibitor VI, NU...
- NU6027CAS: 220036-08-8 Formula: C11H17N5O2 Molecular Weight: 251.2810mM in DMSO● In Stock — US warehouse, ships to EU* Item #: N422642View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 6-(cyclohexylmethoxy)-5-nitrosopyrimidine-2,4-diamine
- SMILES
- C1CCC(CC1)COC2=NC(=NC(=C2N=O)N)N
- InChIKey
- DGWXOLHKVGDQLN-UHFFFAOYSA-N
- InChI
- 1S/C11H17N5O2/c12-9-8(16-17)10(15-11(13)14-9)18-6-7-4-2-1-3-5-7/h7H,1-6H2,(H4,12,13,14,15)
- Synonyms
- 6-(cyclohexylmethoxy)-5-nitrosopyrimidine-2,4-diamine | A14136 | DGWXOLHKVGDQLN-UHFFFAOYSA-N | NCI60_038218 | pyrimid...
- NVP-BSK805 2HCl● In Stock — US warehouse, ships to EU* Item #: N412792View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-[[2,6-difluoro-4-[3-(1-piperidin-4-ylpyrazol-4-yl)quinoxalin-5-yl]phenyl]methyl]morpholine;dihydrochloride
- SMILES
- C1CNCCC1N2C=C(C=N2)C3=NC4=C(C=CC=C4N=C3)C5=CC(=C(C(=C5)F)CN6CCOCC6)F.Cl.Cl
- InChIKey
- NUOCAPALWRHKCU-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- BSK805 | BSK 805 | NVP-BSK805 2HCl | tert-butyl hydrazine carboxylate | J-002254 | SCHEMBL23860571 | BCP23423 | HY-14...
- Nafronyl oxalate salt10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: N423305View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(diethylamino)ethyl 2-(naphthalen-1-ylmethyl)-3-(oxolan-2-yl)propanoate;oxalic acid
- SMILES
- CCN(CC)CCOC(=O)C(CC1CCCO1)CC2=CC=CC3=CC=CC=C32.C(=O)(C(=O)O)O
- InChIKey
- SSAJNPNVUYMUCI-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- AKOS015960731 | Nafronyl oxalate salt | NAFTIDROFURYL OXALATE [WHO-DD] | NCGC00016982-01 | ADRENALINE HYDROCHLORIDE [...
- Naftopidil, Alpha-1d adrenergic receptor antagonist10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: N408047View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- KT-611 | 4-(2-methoxyphenyl)-α-[(1-naphthalenyloxy)methyl]-1-piperazineethanol
- Naftopidil DiHCl10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: N409056View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- KT-611 | 1-(4-(2-methoxyphenyl)piperazin-1-yl)-3-(naphthalen-1-yloxy)propan-2-ol dihydrochloride
- NVP-BHG71210mM in DMSO● In Stock — US warehouse, ships to EU* Item #: N408613View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 4-methyl-3-(1-methyl-6-(pyridin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-ylamino)-N-(3-(trifluoromethyl)phenyl)benzamide
- NVP-BVU972CAS: 1185763-69-2 Formula: C20H16N6 Molecular Weight: 340.3810mM in DMSO● In Stock — US warehouse, ships to EU* Item #: N409092View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 6-((6-(1-methyl-1H-pyrazol-4-yl)imidazo[1,2-b]pyridazin-3-yl)methyl)quinoline
- NVP-VID-400CAS: 174262-13-6 Formula: C24H20ClN3O Molecular Weight: 401.89● In Stock — US warehouse, ships to EU* Item #: N412261View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-(4-chlorophenyl)-N-(2-imidazol-1-yl-2-phenylethyl)benzamide
- SMILES
- C1=CC=C(C=C1)C(CNC(=O)C2=CC=C(C=C2)C3=CC=C(C=C3)Cl)N4C=CN=C4
- InChIKey
- FHHNSSGZEIVGMS-UHFFFAOYSA-N
- InChI
- 1S/C24H20ClN3O/c25-22-12-10-19(11-13-22)18-6-8-21(9-7-18)24(29)27-16-23(28-15-14-26-17-28)20-4-2-1-3-5-20/h1-15,17,23H,16H2,(H,27,29)
- Synonyms
- SDZ285428
- NVR 3-778CAS: 1445790-55-5 Formula: C18H16F4N2O4S Molecular Weight: 432.4● In Stock — US warehouse, ships to EU* Item #: N413621View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-fluoro-3-(4-hydroxypiperidin-1-yl)sulfonyl-N-(3,4,5-trifluorophenyl)benzamide
- SMILES
- C1CN(CCC1O)S(=O)(=O)C2=C(C=CC(=C2)C(=O)NC3=CC(=C(C(=C3)F)F)F)F
- InChIKey
- KKMFSVNFPUPGCA-UHFFFAOYSA-N
- InChI
- 1S/C18H16F4N2O4S/c19-13-2-1-10(18(26)23-11-8-14(20)17(22)15(21)9-11)7-16(13)29(27,28)24-5-3-12(25)4-6-24/h1-2,7-9,12,25H,3-6H2,(H,23,26)
- Synonyms
- 4-fluoro-3-(4-hydroxypiperidin-1-yl)sulfonyl-N-(3,4,5-trifluorophenyl)benzamide | AKOS030527925 | Novira | NVR 3-778 ...
- Nafcillin SodiumCAS: 7177-50-6 Formula: C21H21N2O5SNa·H2O Molecular Weight: 454.4710mM in DMSO◐ .Made to order · 8–12 wks Item #: N408054View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- CL 8491 | 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(2-ethoxy-1-naphthalenyl)carbonyl]amino]-3,3-dimet...
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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.