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 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 to assemble or screen PROTAC designs, with clear identifiers for efficient selection.
By Signaling Pathways
102,620Explore 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
- Apoptosis Activator 2CAS: 79183-19-0 Formula: C15H9Cl2NO2 Molecular Weight: 306.1410mM in DMSO● In Stock — US Item #: A408519View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 1H-Indole-2,3-dione, 1-[(3,4-dichlorophenyl)methyl]-
- Apoptosis Activator VII, ApoptozoleCAS: 1054543-47-3 Formula: C33H25F6N3O3 Molecular Weight: 625.5610mM in DMSO● In Stock — US Item #: A420475View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-[[2-[3,5-bis(trifluoromethyl)phenyl]-4,5-bis(4-methoxyphenyl)imidazol-1-yl]methyl]benzamide
- SMILES
- COC1=CC=C(C=C1)C2=C(N(C(=N2)C3=CC(=CC(=C3)C(F)(F)F)C(F)(F)F)CC4=CC=C(C=C4)C(=O)N)C5=CC=C(C=C5)OC
- InChIKey
- ZIMMTPFXOMAJTQ-UHFFFAOYSA-N
- InChI
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- Synonyms
- CCG-270274 | Apoptosis Activator VII, Apoptozole | 4-[[2-[3,5-bis(trifluoromethyl)phenyl]-4,5-bis(4-methoxyphenyl)-1H...
- ApoptozoleCAS: 1054543-47-3 Formula: C33H25F6N3O3 Molecular Weight: 625.56● In Stock — US Item #: A345787View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-[[2-[3,5-bis(trifluoromethyl)phenyl]-4,5-bis(4-methoxyphenyl)imidazol-1-yl]methyl]benzamide
- SMILES
- COC1=CC=C(C=C1)C2=C(N(C(=N2)C3=CC(=CC(=C3)C(F)(F)F)C(F)(F)F)CC4=CC=C(C=C4)C(=O)N)C5=CC=C(C=C5)OC
- InChIKey
- ZIMMTPFXOMAJTQ-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- CCG-270274 | Apoptosis Activator VII, Apoptozole | 4-[[2-[3,5-bis(trifluoromethyl)phenyl]-4,5-bis(4-methoxyphenyl)-1H...
- Apaziquone, DNA inhibitorCAS: 114560-48-4 Formula: C15H16N2O4 Molecular Weight: 288.3◐ .Made to order · 8–12 wks Item #: A353537View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-(aziridin-1-yl)-3-(hydroxymethyl)-2-[(E)-3-hydroxyprop-1-enyl]-1-methylindole-4,7-dione
- SMILES
- CN1C(=C(C2=C1C(=O)C=C(C2=O)N3CC3)CO)C=CCO
- InChIKey
- MXPOCMVWFLDDLZ-NSCUHMNNSA-N
- InChI
- 1S/C15H16N2O4/c1-16-10(3-2-6-18)9(8-19)13-14(16)12(20)7-11(15(13)21)17-4-5-17/h2-3,7,18-19H,4-6,8H2,1H3/b3-2+
- Synonyms
- N1,N6-Diethyl-3-methylhexanediamide | Apaziquone [USAN:INN] | Apaziquonum | EO9 | EO-9 | EOquin | Eoquin (TN) | 5-(Az...
- Apelin 13CAS: 217082-58-1 Formula: C69H111N23O16S Molecular Weight: 1550.8410mM in DMSO● In Stock — US Item #: A422612View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
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- InChIKey
- XXCCRHIAIBQDPX-PEWBXTNBSA-N
- InChI
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- Apigenin (LY 080400), Activator of CFTRMoligand™ ? 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 Item #: A408941View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- NSC 83244 | 4H-1-Benzopyran-4-one, 5,7-dihydroxy-2-(4-hydroxyphenyl)-
- Apremilast (CC-10004), Phosphodiesterase 4 inhibitorMoligand™ ? 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 Item #: A407886View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Acetamide, N-[2-[(1S)-1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl]-2,3-dihydro-1,3-dioxo-1H-isoindol-4-yl]-
- Apremilast-d5CAS: 1258597-47-5 Formula: C22H19D5N2O7S Molecular Weight: 465.53◐ .Made to order · 8–12 wks Item #: A353530View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[2-[(1S)-1-[4-methoxy-3-(1,1,2,2,2-pentadeuterioethoxy)phenyl]-2-methylsulfonylethyl]-1,3-dioxoisoindol-4-yl]acetamide
- SMILES
- CCOC1=C(C=CC(=C1)C(CS(=O)(=O)C)N2C(=O)C3=C(C2=O)C(=CC=C3)NC(=O)C)OC
- InChIKey
- IMOZEMNVLZVGJZ-JVFKXMKASA-N
- InChI
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- Synonyms
- (S)-2-[1-(3-Ethoxy-4-methoxyphenyl)-2-methylsulfonylethyl]-4-acetylaminoisoindoline-1,3-dione | (S)-N-(2-(1-(3-Ethoxy...
- Aprepitant (MK-0869), Neurokinin 1 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 Item #: A407946View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- L-754030 | 5-[[(2R,3S)-2-[(1R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)-4-morp...
- Apcin10mM in DMSO● In Stock — US Item #: A423090View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(2-methyl-5-nitroimidazol-1-yl)ethyl N-[2,2,2-trichloro-1-(pyrimidin-2-ylamino)ethyl]carbamate
- SMILES
- CC1=NC=C(N1CCOC(=O)NC(C(Cl)(Cl)Cl)NC2=NC=CC=N2)[N+](=O)[O-]
- InChIKey
- ZEXHXVOGJFGTRX-UHFFFAOYSA-N
- InChI
- 1S/C13H14Cl3N7O4/c1-8-19-7-9(23(25)26)22(8)5-6-27-12(24)21-10(13(14,15)16)20-11-17-3-2-4-18-11/h2-4,7,10H,5-6H2,1H3,(H,21,24)(H,17,18,20)
- Synonyms
- Apcin | BDBM50527906 | 2-(2-Methyl-5-nitro-1H-imidazol-1-yl)ethyl N-{2,2,2-trichloro-1-[(pyrimidin-2-yl)amino]ethyl}c...
- Ara-adenosine-5'-triphosphate (ara-ATP) (aqueous solution)CAS: 3714-60-1 Formula: C10H16N5O13P3 Molecular Weight: 507.18Liquid ≥95%◐ .Made to order · 8–12 wks Item #: A276544View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- [[(2R,3S,4S,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl] phosphono hydrogen phosphate
- SMILES
- C1=NC(=C2C(=N1)N(C=N2)C3C(C(C(O3)COP(=O)(O)OP(=O)(O)OP(=O)(O)O)O)O)N
- InChIKey
- ZKHQWZAMYRWXGA-UHTZMRCNSA-N
- InChI
- show more
- Synonyms
- [[(2R,3S,4S,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl] phosphono hydrogen phosphat...
- Ara-cytidine-5'-triphosphate (ara-CTP) (aqueous solution)CAS: 13191-15-6 Formula: C9H16N3O14P3 Molecular Weight: 483.16● In Stock — US Item #: A276538View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Ara-CTP | Arabinofuranosylcytosine triphosphate | Cytosine arabinoside triphosphate
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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.