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
- Gynostemma ExtractCAS: 80321-63-7 Formula: C47H80O17 Molecular Weight: 917.13● In Stock — US warehouse, ships to EU* Item #: G412777View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- CC(=CCCC(C)(C1CCC2(C1C(CC3C2(CCC4C3(CCC(C4(C)C)OC5C(C(C(C(O5)CO)O)O)O)C)C)O)C)OC6C(C(C(C(O6)COC7C(C(C(CO7)O)O)O)O)O)O)C
- InChIKey
- ZTQSADJAYQOCDD-HUGMCNGHSA-N
- InChI
- show more
- Synonyms
- Notoginsenoside Fd | Gypenoside IX | MS-31714 | ginsenoside C-Mx1 | STEVENLEAF | DTXSID001317599 | Gynostemma pentaph...
- Guanidine HCl10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: G408589View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Aminoformamidine HCl | Guanidine, hydrochloride (1:1)
- Guanosine 5'-triphosphate trisodium salt hydrateCAS: 36051-31-7 EC Number: 252-847-2 PubChem CID: 135445727 Formula: C10H13N5Na3O14P3 Molecular Weight: 589.1310mM in Water● In Stock — US warehouse, ships to EU* Item #: G423621View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- trisodium;[[[(2R,3S,4R,5R)-5-(2-amino-6-oxo-1H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-oxidophosphoryl] phosphate
- SMILES
- C1=NC2=C(N1C3C(C(C(O3)COP(=O)(O)OP(=O)([O-])OP(=O)([O-])[O-])O)O)N=C(NC2=O)N.[Na+].[Na+].[Na+]
- InChIKey
- KZRMTEVIDYXWQW-CYCLDIHTSA-K
- InChI
- show more
- Synonyms
- 36051-31-7|Guanosine 5'-triphosphate trisodium salt|GTP Trisodium salt|5'-GTP trisodium salt|Guanosine-5'-triphosphat...
- GuaifenesinMoligand™ ? 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 #: G407746View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 3-(2-methoxyphenoxy)-1,2-propanediol
- GuanabenzCAS: 5051-62-7 Formula: C8H8Cl2N4 Molecular Weight: 231.08● In Stock — US warehouse, ships to EU* Item #: G413129View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[(E)-(2,6-dichlorophenyl)methylideneamino]guanidine
- SMILES
- C1=CC(=C(C(=C1)Cl)C=NN=C(N)N)Cl
- InChIKey
- WDZVGELJXXEGPV-YIXHJXPBSA-N
- InChI
- 1S/C8H8Cl2N4/c9-6-2-1-3-7(10)5(6)4-13-14-8(11)12/h1-4H,(H4,11,12,14)/b13-4+
- Synonyms
- 2-{[(2,6-dichlorophenyl)methylidene]amino}guanidine | BRD-K67847053-015-08-8 | DTXSID6045666 | STL433513 | [(2,6-Dich...
- Guanabenz10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: G424347View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[(E)-(2,6-dichlorophenyl)methylideneamino]guanidine
- SMILES
- C1=CC(=C(C(=C1)Cl)C=NN=C(N)N)Cl
- InChIKey
- WDZVGELJXXEGPV-YIXHJXPBSA-N
- InChI
- 1S/C8H8Cl2N4/c9-6-2-1-3-7(10)5(6)4-13-14-8(11)12/h1-4H,(H4,11,12,14)/b13-4+
- Synonyms
- 2-{[(2,6-dichlorophenyl)methylidene]amino}guanidine | BRD-K67847053-015-08-8 | DTXSID6045666 | STL433513 | [(2,6-Dich...
- Guanabenz Acetate, Adrenergic receptor alpha-2 agonistMoligand™ ? 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 #: G407792View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- WY-8678 Acetate | Hydrazinecarboximidamide, 2-[(2,6-dichlorophenyl)methylene]-, acetate (1:1)
- Guanethidine Monosulfate, Norepinephrine transporter substrate10mM in Water● In Stock — US warehouse, ships to EU* Item #: G425271View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[2-(azocan-1-yl)ethyl]guanidine;sulfuric acid
- SMILES
- C1CCCN(CCC1)CCN=C(N)N.OS(=O)(=O)O
- InChIKey
- YUFWAVFNITUSHI-UHFFFAOYSA-N
- InChI
- 1S/C10H22N4.H2O4S/c11-10(12)13-6-9-14-7-4-2-1-3-5-8-14;1-5(2,3)4/h1-9H2,(H4,11,12,13);(H2,1,2,3,4)
- Synonyms
- guanethidine sulfate|Guanethidine monosulfate|645-43-2|Ismelin|Ismelin sulfate|Guanethidine (sulfate)|Guanethidine Su...
- Guanethidine Monosulfate, Norepinephrine transporter substrateCAS: 645-43-2 Formula: C10H24N4O4S Molecular Weight: 296.39● In Stock — US warehouse, ships to EU* Item #: G304274View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[2-(azocan-1-yl)ethyl]guanidine;sulfuric acid
- SMILES
- C1CCCN(CCC1)CCN=C(N)N.OS(=O)(=O)O
- InChIKey
- YUFWAVFNITUSHI-UHFFFAOYSA-N
- InChI
- 1S/C10H22N4.H2O4S/c11-10(12)13-6-9-14-7-4-2-1-3-5-8-14;1-5(2,3)4/h1-9H2,(H4,11,12,13);(H2,1,2,3,4)
- Synonyms
- Monosulfate, Guanethidine | ESIMIL COMPONENT GUANETHIDINE MONOSULFATE | N-(2-Guanidino ethyl)heptamethylenimine sulfa...
- Guanethidine SulfateCAS: 60-02-6 EC Number: 200-452-0 PubChem CID: 65328 Formula: C20H44N8·H2O4S Molecular Weight: 494.710mM in Water● In Stock — US warehouse, ships to EU* Item #: G424993View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[2-(azocan-1-yl)ethyl]guanidine;sulfuric acid
- SMILES
- C1CCCN(CCC1)CCN=C(N)N.C1CCCN(CCC1)CCN=C(N)N.OS(=O)(=O)O
- InChIKey
- NBJGGHFXCGHTNJ-UHFFFAOYSA-N
- InChI
- 1S/2C10H22N4.H2O4S/c2*11-10(12)13-6-9-14-7-4-2-1-3-5-8-14;1-5(2,3)4/h2*1-9H2,(H4,11,12,13);(H2,1,2,3,4)
- Synonyms
- GUANETHIDINE SULFATE [USAN] | GUANETHIDINE SULFATE [WHO-DD] | SR-01000872643 | 1-(2-(azocan-1-yl)ethyl)guanidine hemi...
- Griffonilide10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: G425082View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Griffonilide | 2(6H)-Benzofuranone, 7,7a-dihydro-6,7-dihydroxy-, (6R,7S,7aS)- | 2(6H)-Benzofuranone, 7,7a-dihydro-6,7...
- Guadecitabine (SGI-110)◐ .Made to order · 8–12 wks Item #: G413705View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- S-110
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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.