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
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
24,635Navigate 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
- B0210mM in DMSO● In Stock — US warehouse, ships to EU* Item #: B421153View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-benzyl-2-[(E)-2-pyridin-3-ylethenyl]quinazolin-4-one
- SMILES
- C1=CC=C(C=C1)CN2C(=NC3=CC=CC=C3C2=O)C=CC4=CN=CC=C4
- InChIKey
- GEKDQXSPTHHANP-OUKQBFOZSA-N
- InChI
- 1S/C22H17N3O/c26-22-19-10-4-5-11-20(19)24-21(13-12-17-9-6-14-23-15-17)25(22)16-18-7-2-1-3-8-18/h1-15H,16H2/b13-12+
- Synonyms
- cid_5738263 | RAD51 inhibitor B02 | B02; B-02; B 02; RAD51-IN-02 | SR-01000722866 | s8434 | BDBM48804 | RAD51 Inhibit...
- B355252Solid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%◐ .Made to order · 8–12 wks Item #: B412936View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-chloro-N-(naphthalen-1-ylmethyl)-5-(3-piperazin-1-ylphenoxy)thiophene-2-sulfonamide
- SMILES
- C1CN(CCN1)C2=CC(=CC=C2)OC3=C(C=C(S3)S(=O)(=O)NCC4=CC=CC5=CC=CC=C54)Cl
- InChIKey
- YAAVQYDOVJQDFZ-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- 4-Chloro-N-(naphthalen-1-ylmethyl)-5-(3-piperazin-1-ylphenoxy)thiophene-2-sulfonamide | B-355252
- BAM72mM in DMSO● In Stock — US warehouse, ships to EU* Item #: B423388View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-[(2-ethoxyphenyl)diazenyl]-5-methyl-2-(4-phenyl-1,3-thiazol-2-yl)-1H-pyrazol-3-one
- SMILES
- CCOC1=CC=CC=C1N=NC2=C(NN(C2=O)C3=NC(=CS3)C4=CC=CC=C4)C
- InChIKey
- WRLVHADVOGFZOZ-UHFFFAOYSA-N
- InChI
- 1S/C21H19N5O2S/c1-3-28-18-12-8-7-11-16(18)23-24-19-14(2)25-26(20(19)27)21-22-17(13-29-21)15-9-5-4-6-10-15/h4-13,25H,3H2,1-2H3
- Synonyms
- (E)-4-(2-(2-Ethoxyphenyl)hydrazineylidene)-5-methyl-2-(4-phenylthiazol-2-yl)-2,4-dihydro-3H-pyrazol-3-one | s7105 | S...
- Azilsartan, Type-1 angiotensin II receptor antagonistMoligand™ ? 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● In Stock — US warehouse, ships to EU* Item #: A408730View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- TAK-536 | 1H-Benzimidazole-7-carboxylic acid, 1-[[2'-(2,5-dihydro-5-oxo-1,2,4-oxadiazol-3-yl)[1,1'-biphenyl]-4-yl]met...
- Azilsartan MedoxomilCAS: 863031-21-4 Formula: C30H24N4O8 Molecular Weight: 568.55Moligand™ ? 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● In Stock — US warehouse, ships to EU* Item #: A409153View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- TAK-491 | 1H-Benzimidazole-7-carboxylic acid, 1-[[2'-(2,5-dihydro-5-oxo-1,2,4-oxadiazol-3-yl)[1,1'-biphenyl]-4-yl]met...
- Azinphos-methyl Standard1000ug/ml in Acetone● In Stock — US warehouse, ships to EU* Item #: A128293View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Guthion Methyltriazotin
- BAM 15CAS: 210302-17-3 Formula: C16H10F2N6O Molecular Weight: 340.2910mM in DMSO● In Stock — US warehouse, ships to EU* Item #: B422557View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-N,6-N-bis(2-fluorophenyl)-[1,2,5]oxadiazolo[3,4-b]pyrazine-5,6-diamine
- SMILES
- C1=CC=C(C(=C1)NC2=NC3=NON=C3N=C2NC4=CC=CC=C4F)F
- InChIKey
- OEGJBRZAJRPPHL-UHFFFAOYSA-N
- InChI
- 1S/C16H10F2N6O/c17-9-5-1-3-7-11(9)19-13-14(20-12-8-4-2-6-10(12)18)22-16-15(21-13)23-25-24-16/h1-8H,(H,19,21,23)(H,20,22,24)
- Synonyms
- N5,N6-bis(2-Fluorophenyl)-[1,2,5]oxadiazolo[3,4-b]pyrazine-5,6-diamine
- BAY 1436032, Isocitrate dehydrogenase [NADP] cytoplasmic inhibitorCAS: 1803274-65-8 Formula: C26H30F3N3O3 Molecular Weight: 489.53Solid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%◐ .Made to order · 8–12 wks Item #: B414041View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-[2-[4-(trifluoromethoxy)anilino]-1-[(1R,5R)-3,3,5-trimethylcyclohexyl]benzimidazol-5-yl]propanoic acid
- SMILES
- CC1CC(CC(C1)(C)C)N2C3=C(C=C(C=C3)CCC(=O)O)N=C2NC4=CC=C(C=C4)OC(F)(F)F
- InChIKey
- RNMAUIMMNAHKQR-QFBILLFUSA-N
- InChI
- show more
- Synonyms
- BAY-1436032 | US10344004, Test compound Table 3 | SCHEMBL17009632 | BAY 1436032 | s8530 | 3-(2-((4-(trifluoromethoxy)...
- BAY-1816032CAS: 1891087-61-8 Formula: C27H24F2N6O4 Molecular Weight: 534.51● In Stock — US warehouse, ships to EU* Item #: B414286View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[3,5-difluoro-4-[[3-[5-methoxy-4-[(3-methoxypyridin-4-yl)amino]pyrimidin-2-yl]indazol-1-yl]methyl]phenoxy]ethanol
- SMILES
- COC1=CN=C(N=C1NC2=C(C=NC=C2)OC)C3=NN(C4=CC=CC=C43)CC5=C(C=C(C=C5F)OCCO)F
- InChIKey
- QVOGVAVHOLLLAZ-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- 2-[3,5-bis(fluoranyl)-4-[[3-[5-methoxy-4-[(3-methoxypyridin-4-yl)amino]pyrimidin-2-yl]indazol-1-yl]methyl]phenoxy]eth...
- BAY-218CAS: 2162982-11-6 Formula: C2OH17ClFN3O3 Molecular Weight: 401.82● In Stock — US warehouse, ships to EU* Item #: B414214View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 6-(4-chlorophenyl)-2-(3-fluorophenyl)-N-[(2S)-1-hydroxypropan-2-yl]-3-oxopyridazine-4-carboxamide
- SMILES
- CC(CO)NC(=O)C1=CC(=NN(C1=O)C2=CC(=CC=C2)F)C3=CC=C(C=C3)Cl
- InChIKey
- RFGRNBWAUZSMBN-LBPRGKRZSA-N
- InChI
- 1S/C20H17ClFN3O3/c1-12(11-26)23-19(27)17-10-18(13-5-7-14(21)8-6-13)24-25(20(17)28)16-4-2-3-15(22)9-16/h2-10,12,26H,11H2,1H3,(H,23,27)/t12-/m0/s1
- Synonyms
- AHR antagonist 1 | 6-(4-Chlorophenyl)-2-(3-fluorophenyl)-N-[(2S)-1-hydroxy-2-propanyl]-3-oxo-2,3-dihydro-4-pyridazine...
- BCH001CAS: 384859-58-9 Formula: C2OH15F3N2O5 Molecular Weight: 420.34● In Stock — US warehouse, ships to EU* Item #: B414306View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[[3-ethoxycarbonyl-6-(trifluoromethoxy)quinolin-4-yl]amino]benzoic acid
- SMILES
- CCOC(=O)C1=CN=C2C=CC(=CC2=C1NC3=CC=CC=C3C(=O)O)OC(F)(F)F
- InChIKey
- FWJMVZAVAUGMDX-UHFFFAOYSA-N
- InChI
- 1S/C20H15F3N2O5/c1-2-29-19(28)14-10-24-15-8-7-11(30-20(21,22)23)9-13(15)17(14)25-16-6-4-3-5-12(16)18(26)27/h3-10H,2H2,1H3,(H,24,25)(H,26,27)
- Synonyms
- 3-Quinolinecarboxylic acid,4-[(2-carboxyphenyl)amino]-6-(trifluoromethoxy)-,3-ethyl ester
- BCICAS: 1245792-51-1 Formula: C22H23NO Molecular Weight: 317.42Solid ≥99%● In Stock — US warehouse, ships to EU* Item #: B412799View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2E)-2-benzylidene-3-(cyclohexylamino)-3H-inden-1-one
- SMILES
- C1CCC(CC1)NC2C3=CC=CC=C3C(=O)C2=CC4=CC=CC=C4
- InChIKey
- XJDKPLZUXCIMIS-HMMYKYKNSA-N
- InChI
- 1S/C22H23NO/c24-22-19-14-8-7-13-18(19)21(23-17-11-5-2-6-12-17)20(22)15-16-9-3-1-4-10-16/h1,3-4,7-10,13-15,17,21,23H,2,5-6,11-12H2/b20-15+
- Synonyms
- (E)-BCI
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.