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
102,623Explore 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 —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
- Ro 10-5824 dihydrochloride● In Stock — US warehouse, ships to EU* Item #: R287922View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-methyl-5-[(4-phenyl-3,6-dihydro-2H-pyridin-1-yl)methyl]pyrimidin-4-amine;dihydrochloride
- SMILES
- CC1=NC=C(C(=N1)N)CN2CCC(=CC2)C3=CC=CC=C3.Cl.Cl
- InChIKey
- UZHMRJRDYCRKIZ-UHFFFAOYSA-N
- InChI
- 1S/C17H20N4.2ClH/c1-13-19-11-16(17(18)20-13)12-21-9-7-15(8-10-21)14-5-3-2-4-6-14;;/h2-7,11H,8-10,12H2,1H3,(H2,18,19,20);2*1H
- Synonyms
- 4-Pyrimidinamine, 5-((3,6-dihydro-4-phenyl-1(2H)-pyridinyl)methyl)-2-methyl-, dihydrochloride | 2-methyl-5-((4-phenyl...
- Ro 10-5824 dihydrochloride◐ .Made to order · 8–12 wks Item #: R347293View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-methyl-5-[(4-phenyl-3,6-dihydro-2H-pyridin-1-yl)methyl]pyrimidin-4-amine
- SMILES
- CC1=NC=C(C(=N1)N)CN2CCC(=CC2)C3=CC=CC=C3
- InChIKey
- KABDATZAOUSYES-UHFFFAOYSA-N
- InChI
- 1S/C17H20N4/c1-13-19-11-16(17(18)20-13)12-21-9-7-15(8-10-21)14-5-3-2-4-6-14/h2-7,11H,8-10,12H2,1H3,(H2,18,19,20)
- Synonyms
- CHEBI:93407 | 2-methyl-5-[(4-phenyl-3,6-dihydro-2H-pyridin-1-yl)methyl]-4-pyrimidinamine | 4-Pyrimidinamine, 5-[(3,6-...
- Nepsilon-(1-Carboxyethyl)-L-lysine (mixture of diastereoisomers)◐ .Made to order · 8–12 wks Item #: N276494View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Nε-(1-Carboxyethyl)lysineN6-(1-Carboxyethyl)-L-lysine
- Nepsilon-4-Nitro-Z-L-lysine pyrrolidideCAS: 136259-18-2 Formula: C18H26N4O5 Molecular Weight: 378.42◐ .Made to order · 8–12 wks Item #: N350196View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (4-nitrophenyl)methyl N-[(5S)-5-amino-6-oxo-6-pyrrolidin-1-ylhexyl]carbamate
- SMILES
- C1CCN(C1)C(=O)C(CCCCNC(=O)OCC2=CC=C(C=C2)[N+](=O)[O-])N
- InChIKey
- YDYSCRZHYWLSPQ-INIZCTEOSA-N
- InChI
- 1S/C18H26N4O5/c19-16(17(23)21-11-3-4-12-21)5-1-2-10-20-18(24)27-13-14-6-8-15(9-7-14)22(25)26/h6-9,16H,1-5,10-13,19H2,(H,20,24)/t16-/m0/s1
- Ganetespib (STA-9090), Heat shock protein HSP90 inhibitorSolid ≥98%● In Stock — US warehouse, ships to EU* Item #: G127078View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-(2,4-dihydroxy-5-propan-2-ylphenyl)-4-(1-methylindol-5-yl)-1H-1,2,4-triazol-5-one
- SMILES
- CC(C)C1=C(C=C(C(=C1)C2=NNC(=O)N2C3=CC4=C(C=C3)N(C=C4)C)O)O
- InChIKey
- RVAQIUULWULRNW-UHFFFAOYSA-N
- InChI
- 1S/C20H20N4O3/c1-11(2)14-9-15(18(26)10-17(14)25)19-21-22-20(27)24(19)13-4-5-16-12(8-13)6-7-23(16)3/h4-11,25-26H,1-3H3,(H,22,27)
- Synonyms
- EX-A250 | 3-(2,4-Dihydroxy-5-isopropylphenyl)-4-(1-methyl-1H-indol-5-yl)-1H-1,2,4-triazol-5(4H)-one | AS-35117 | FT-0...
- Ganglioside GD3 disodium saltCAS: 62010-37-1 Formula: C70H123N3O29・2Na Molecular Weight: 1516.8Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%● In Stock — US warehouse, ships to EU* Item #: G345916View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- show more
- InChIKey
- LGRBZCLULGFXOD-DQMMGUQESA-L
- InChI
- show more
- Synonyms
- Disialoganglioside GD3 2Na | GD3 2Na
- ML 335CAS: 825658-06-8 Formula: C15H14Cl2N2O3S Molecular Weight: 373.25● In Stock — US warehouse, ships to EU* Item #: M286735View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[(2,4-dichlorophenyl)methyl]-4-(methanesulfonamido)benzamide
- SMILES
- CS(=O)(=O)NC1=CC=C(C=C1)C(=O)NCC2=C(C=C(C=C2)Cl)Cl
- InChIKey
- RDFIQTZRJRVFHK-UHFFFAOYSA-N
- InChI
- 1S/C15H14Cl2N2O3S/c1-23(21,22)19-13-6-3-10(4-7-13)15(20)18-9-11-2-5-12(16)8-14(11)17/h2-8,19H,9H2,1H3,(H,18,20)
- Synonyms
- N-[(2,4-dichlorophenyl)methyl]-4-(methanesulfonamido)benzamide | N-[(2,4-DICHLOROPHENYL)METHYL]-4-METHANESULFONAMIDOB...
- NKP608CAS: 177707-12-9 Formula: C31H24ClF6N3O2 Molecular Weight: 619.98Solid ≥99%◐ .Made to order · 8–12 wks Item #: N125026View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[(2R,4S)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-[(4-chlorophenyl)methyl]piperidin-4-yl]quinoline-4-carboxamide
- SMILES
- C1CN(C(CC1NC(=O)C2=CC=NC3=CC=CC=C23)CC4=CC=C(C=C4)Cl)C(=O)C5=CC(=CC(=C5)C(F)(F)F)C(F)(F)F
- InChIKey
- NXLUTEDAEFXMQR-BJKOFHAPSA-N
- InChI
- show more
- Synonyms
- CGP-608 | ((2r,4s)-N-[1-{3,5-bis(trifluoromethyl)-benzoyl}-2-(4-chloro-benzyl)-4-piperidinyl]-quinoline-4-carboxamide...
- NNC 55-0396 dihydrochlorideSolid ≥99%● In Stock — US warehouse, ships to EU* Item #: N274718View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- CC(C)C1C2=C(CCC1(CCN(C)CCCC3=NC4=CC=CC=C4N3)OC(=O)C5CC5)C=C(C=C2)F.Cl.Cl
- InChIKey
- BCCQNBXHUMKLFW-HNQRYHMESA-N
- InChI
- show more
- Synonyms
- NNC 55-0396 dihydrochloride | AKOS024457020 | Cyclopropanecarboxylic acid, (1S,2S)-2-(2-((3-(1H-benzimidazol-2-yl)pro...
- Magnesium dodecyl sulfateCAS: 3097-08-3 Formula: C24H50MgO8S2 Molecular Weight: 551.1● In Stock — US warehouse, ships to EU* Item #: M275001View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- magnesium;dodecyl sulfate
- SMILES
- CCCCCCCCCCCCOS(=O)(=O)[O-].CCCCCCCCCCCCOS(=O)(=O)[O-].[Mg+2]
- InChIKey
- HBNDBUATLJAUQM-UHFFFAOYSA-L
- InChI
- 1S/2C12H26O4S.Mg/c2*1-2-3-4-5-6-7-8-9-10-11-12-16-17(13,14)15;/h2*2-12H2,1H3,(H,13,14,15);/q;;+2/p-2
- Synonyms
- EINECS 221-450-6 | Dodecyl magnesium sulphate | Q27289809 | SCHEMBL27193 | Sulfuric acid, monododecyl ester, magnesiu...
- NQTrpCAS: 185351-19-3 Formula: C21H16N2O4 Molecular Weight: 360.36● In Stock — US warehouse, ships to EU* Item #: N286859View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2S)-2-[(1,4-dioxonaphthalen-2-yl)amino]-3-(1H-indol-3-yl)propanoic acid
- SMILES
- C1=CC=C2C(=C1)C(=O)C=C(C2=O)NC(CC3=CNC4=CC=CC=C43)C(=O)O
- InChIKey
- DZZUYZXINNHEGM-SFHVURJKSA-N
- InChI
- 1S/C21H16N2O4/c24-19-10-17(20(25)15-7-2-1-6-14(15)19)23-18(21(26)27)9-12-11-22-16-8-4-3-5-13(12)16/h1-8,10-11,18,22-23H,9H2,(H,26,27)/t18-/m0/s1
- Synonyms
- NQTrp, >=98% (HPLC) | DTXSID30717912 | (1,4-dioxo-1,4-dihydronaphthalen-2-yl)-L-tryptophan | 1,4-naphthoquinon-2-yl-l...
- S-Methyl-N,N-diethylthiocarbamate Sulfone (MeDTC)◐ .Made to order · 8–12 wks Item #: S275177View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N,N-diethyl-1-methylsulfonylformamide
- SMILES
- CCN(CC)C(=O)S(=O)(=O)C
- InChIKey
- XRFGLFAEBISDIV-UHFFFAOYSA-N
- InChI
- 1S/C6H13NO3S/c1-4-7(5-2)6(8)11(3,9)10/h4-5H2,1-3H3
- Synonyms
- N,N-diethyl-1-methylsulfonyl-formamide | starbld0006179 | DTXSID10393576 | MEDTC | N,N-DIETHYL-1-METHANESULFONYLFORMA...
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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.