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
102,621Explore 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
- Indomethacin (NSC-77541), Inhibitor of COX-1;Inhibitor of COX-2;Agonist of DP 2 receptor;Agonist of Peroxisome proliferator-activated receptor-γ;Inhibitor of Proton-coupled folate transporterMoligand™ ? 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 #: I408762View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Indometacin | 1-(4-chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic acid
- Iniparib (BSI-201), Reactive nitro radicalCAS: 160003-66-7 Formula: C7H5IN2O3 Molecular Weight: 292.03Moligand™ ? 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 #: I409033View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- NSC-746045, IND-71677 | 4-iodo-3-nitrobenzamide
- Inosine PranobexCAS: 36703-88-5 EC Number: 253-162-1 PubChem CID: 135449284 Formula: C10H12N4O5·3C9H9NO3·3C5H13NO Molecular Weight: 1115.2510mM in DMSO● In Stock — US warehouse, ships to EU* Item #: I423644View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-acetamidobenzoic acid;9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1H-purin-6-one;1-(dimethylamino)propan-2-ol
- SMILES
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- InChIKey
- YLDCUKJMEKGGFI-QCSRICIXSA-N
- InChI
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- Synonyms
- Inosine & 1-(dimethylamino)-2-propanol & 4-(acetylamino)benzoate (salt) (1:3:3) | Inosine-2-hydroxypropyldimethylammo...
- Ioxaglic Acid, DiagnosticCAS: 59017-64-0 Formula: C24H21I6N5O8 Molecular Weight: 1268.88◐ .Made to order · 8–12 wks Item #: I340590View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-[[2-[[3-[acetyl(methyl)amino]-2,4,6-triiodo-5-(methylcarbamoyl)benzoyl]amino]acetyl]amino]-5-(2-hydroxyethylcarbamoyl)-2,4,6-triiodobenzoic acid
- SMILES
- CC(=O)N(C)C1=C(C(=C(C(=C1I)C(=O)NCC(=O)NC2=C(C(=C(C(=C2I)C(=O)O)I)C(=O)NCCO)I)I)C(=O)NC)I
- InChIKey
- TYYBFXNZMFNZJT-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- Prestwick0_001062 | Prestwick1_001062 | NCGC00016886-02 | CCG-221062 | Ioxaglic acid [USAN:USP:INN:BAN:JAN] | D01761 ...
- Ipragliflozin L-Proline, Sodium/glucose cotransporter 2 inhibitor● In Stock — US warehouse, ships to EU* Item #: I412672View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2S,3R,4R,5S,6R)-2-[3-(1-benzothiophen-2-ylmethyl)-4-fluorophenyl]-6-(hydroxymethyl)oxane-3,4,5-triol;(2S)-pyrrolidine-2-carboxylic acid
- SMILES
- C1CC(NC1)C(=O)O.C1=CC=C2C(=C1)C=C(S2)CC3=C(C=CC(=C3)C4C(C(C(C(O4)CO)O)O)O)F
- InChIKey
- TUVGWWULBZIUBS-FVYIYGEMSA-N
- InChI
- show more
- Synonyms
- IPRAGLIFLOZIN L-PROLINE [WHO-DD] | (2S,3R,4R,5S,6R)-2-(3-(Benzo[b]thiophen-2-ylmethyl)-4-fluorophenyl)-6-(hydroxymeth...
- Iron Chelator, Dp44mT● In Stock — US warehouse, ships to EU* Item #: I339506View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-(dipyridin-2-ylmethylideneamino)-1,1-dimethylthiourea
- SMILES
- CN(C)C(=S)NN=C(C1=CC=CC=N1)C2=CC=CC=N2
- InChIKey
- XOBIGRNRXCAMJQ-UHFFFAOYSA-N
- InChI
- 1S/C14H15N5S/c1-19(2)14(20)18-17-13(11-7-3-5-9-15-11)12-8-4-6-10-16-12/h3-10H,1-2H3,(H,18,20)
- Synonyms
- DTXSID80438322 | 2-(Di(pyridin-2-yl)methylene)-N,N-dimethylhydrazinecarbothioamide | J-008883 | 3-[bis(2-pyridyl)meth...
- Ionotropic Agonists Kit◐ .Made to order · 8–12 wks Item #: I275853View ProductPricing & Pack Sizes
Technical Identifiers
- Iopanoic Acid10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: I427174View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[(3-amino-2,4,6-triiodophenyl)methyl]butanoic acid
- SMILES
- CCC(CC1=C(C(=C(C=C1I)I)N)I)C(=O)O
- InChIKey
- OIRFJRBSRORBCM-UHFFFAOYSA-N
- InChI
- 1S/C11H12I3NO2/c1-2-5(11(16)17)3-6-7(12)4-8(13)10(15)9(6)14/h4-5H,2-3,15H2,1H3,(H,16,17)
- Synonyms
- IOPANOIC ACID|96-83-3|Iodopanoic acid|Telepaque|Cholevid|Iopagnost|iopanic acid|Bilijodon|Choladine|Jopagnost|Cistobi...
- IoversolCAS: 87771-40-2 Formula: C18H24I3N3O9 Molecular Weight: 807.12Liquid 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: I426632View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-N,3-N-bis(2,3-dihydroxypropyl)-5-[(2-hydroxyacetyl)-(2-hydroxyethyl)amino]-2,4,6-triiodobenzene-1,3-dicarboxamide
- SMILES
- C(CO)N(C1=C(C(=C(C(=C1I)C(=O)NCC(CO)O)I)C(=O)NCC(CO)O)I)C(=O)CO
- InChIKey
- AMDBBAQNWSUWGN-UHFFFAOYSA-N
- InChI
- 1S/C18H24I3N3O9/c19-13-11(17(32)22-3-8(29)5-26)14(20)16(24(1-2-25)10(31)7-28)15(21)12(13)18(33)23-4-9(30)6-27/h8-9,25-30H,1-7H2,(H,22,32)(H,23,33)
- Synonyms
- 1-N,3-N-bis(2,3-dihydroxypropyl)-5-[(2-hydroxyacetyl)-(2-hydroxyethyl)amino]-2,4,6-triiodobenzene-1,3-dicarboxamide |...
- IrigeninCAS: 548-76-5 Formula: C18H16O8 Molecular Weight: 360.3110mM in DMSO● In Stock — US warehouse, ships to EU* Item #: I424678View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5,7-dihydroxy-3-(3-hydroxy-4,5-dimethoxyphenyl)-6-methoxychromen-4-one
- SMILES
- COC1=CC(=CC(=C1OC)O)C2=COC3=C(C2=O)C(=C(C(=C3)O)OC)O
- InChIKey
- TUGWPJJTQNLKCL-UHFFFAOYSA-N
- InChI
- 1S/C18H16O8/c1-23-13-5-8(4-10(19)17(13)24-2)9-7-26-12-6-11(20)18(25-3)16(22)14(12)15(9)21/h4-7,19-20,22H,1-3H3
- Synonyms
- 5,7-Dihydroxy-3-(3-hydroxy-4,5-dimethoxyphenyl)-6-methoxy-4-benzopyrone | MFCD00597047 | SR-05000002617 | DTXSID90203...
- Ipatasertib (GDC-0068), Serine/threonine-protein kinase AKT inhibitorCAS: 1001264-89-6 Formula: C24H32ClN5O2 Molecular Weight: 458Liquid 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● In Stock — US warehouse, ships to EU* Item #: I408335View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- RG7440 | (S)-2-(4-chlorophenyl)-1-(4-((5R,7R)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin...
- Ipragliflozin L-Proline, Sodium/glucose cotransporter 2 inhibitor10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: I427062View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2S,3R,4R,5S,6R)-2-[3-(1-benzothiophen-2-ylmethyl)-4-fluorophenyl]-6-(hydroxymethyl)oxane-3,4,5-triol;(2S)-pyrrolidine-2-carboxylic acid
- SMILES
- C1CC(NC1)C(=O)O.C1=CC=C2C(=C1)C=C(S2)CC3=C(C=CC(=C3)C4C(C(C(C(O4)CO)O)O)O)F
- InChIKey
- TUVGWWULBZIUBS-FVYIYGEMSA-N
- InChI
- show more
- Synonyms
- IPRAGLIFLOZIN L-PROLINE [WHO-DD] | (2S,3R,4R,5S,6R)-2-(3-(Benzo[b]thiophen-2-ylmethyl)-4-fluorophenyl)-6-(hydroxymeth...
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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.