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
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
- Sennoside B10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: S421146View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- C1=CC2=C(C(=C1)OC3C(C(C(C(O3)CO)O)O)O)C(=O)C4=C(C2C5C6=C(C(=CC=C6)OC7C(C(C(C(O7)CO)O)O)O)C(=O)C8=C5C=C(C=C8O)C(=O)O)C=C(C=C4O)C(=O)O
- InChIKey
- IPQVTOJGNYVQEO-AIFLABODSA-N
- InChI
- show more
- Synonyms
- Sennoside B|128-57-4|SennosideB|MLS002473001|CHEBI:34975|F887D1637W|(9R,9'S)-4,4'-dihydroxy-10,10'-dioxo-5,5'-bis(((2...
- SepimostatCAS: 103926-64-3 Formula: C21H19N5O2 Molecular Weight: 373.41Solid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥95%◐ .Made to order · 8–12 wks Item #: S413390View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (6-carbamimidoylnaphthalen-2-yl) 4-(4,5-dihydro-1H-imidazol-2-ylamino)benzoate
- SMILES
- C1CN=C(N1)NC2=CC=C(C=C2)C(=O)OC3=CC4=C(C=C3)C=C(C=C4)C(=N)N
- InChIKey
- QMRJOIUGPCVZPH-UHFFFAOYSA-N
- InChI
- 1S/C21H19N5O2/c22-19(23)16-2-1-15-12-18(8-5-14(15)11-16)28-20(27)13-3-6-17(7-4-13)26-21-24-9-10-25-21/h1-8,11-12H,9-10H2,(H3,22,23)(H2,24,25,26)
- Synonyms
- SCHEMBL15535526 | Sepimostat [INN] | Q27263101 | HY-136299 | F81697 | (6-carbamimidoylnaphthalen-2-yl) 4-(4,5-dihydro...
- Sephin-1CAS: 951441-04-6 Formula: C8H9ClN4 Molecular Weight: 196.6410mM in DMSO◐ .Made to order · 8–12 wks Item #: S427063View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[(E)-(2-chlorophenyl)methylideneamino]guanidine
- SMILES
- C1=CC=C(C(=C1)C=NN=C(N)N)Cl
- InChIKey
- PDWJALXSRRSUHR-LFYBBSHMSA-N
- InChI
- 1S/C8H9ClN4/c9-7-4-2-1-3-6(7)5-12-13-8(10)11/h1-5H,(H4,10,11,13)/b12-5+
- Synonyms
- AKOS001595395 | Icerguastat | SCHEMBL5460773 | 2-[(E)-(2-Chlorophenyl)methylideneamino]guanidine | NSC-118376 | EINEC...
- Sevelamer HCl100%◐ .Made to order · 8–12 wks Item #: S413094View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(chloromethyl)oxirane;prop-2-en-1-amine;hydrochloride
- SMILES
- C=CCN.C1C(O1)CCl.Cl
- InChIKey
- KHNXRSIBRKBJDI-UHFFFAOYSA-N
- InChI
- 1S/C3H5ClO.C3H7N.ClH/c4-1-3-2-5-3;1-2-3-4;/h3H,1-2H2;2H,1,3-4H2;1H
- Synonyms
- AB01568265_01 | FT-0653684 | 2-Propen-1-amine, hydrochloride (1:1), polymer with 2-(chloromethyl)oxirane | Sevelamer ...
- Sertraline HCl10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: S426023View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (1S,4S)-4-(3,4-dichlorophenyl)-N-methyl-1,2,3,4-tetrahydronaphthalen-1-amine;hydrochloride
- SMILES
- CNC1CCC(C2=CC=CC=C12)C3=CC(=C(C=C3)Cl)Cl.Cl
- InChIKey
- BLFQGGGGFNSJKA-XHXSRVRCSA-N
- InChI
- 1S/C17H17Cl2N.ClH/c1-20-17-9-7-12(13-4-2-3-5-14(13)17)11-6-8-15(18)16(19)10-11;/h2-6,8,10,12,17,20H,7,9H2,1H3;1H/t12-,17-;/m0./s1
- Synonyms
- CAS-79559-97-0 | Sertraline hydrochloride [USAN] | NSC 758948 | Sertraline hydrochloride- Bio-X | UNII-UTI8907Y6X | A...
- Setanaxib (GKT137831), Inhibitor of cytochrome b-245 beta chain;Inhibitor of NADPH oxidase 1;Inhibitor of NADPH oxidase 4;Inhibitor of NADPH oxidase 5CAS: 1218942-37-0 EC Number: 942-974-8 PubChem CID: 58496428 Formula: C21H19ClN4O2 Molecular Weight: 394.85Moligand™ ? 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 #: S407890View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- GKT831 | 2-(2-chlorophenyl)-4-(3-(dimethylamino)phenyl)-5-methyl-1,2-dihydro-5H-pyrazolo[4,3-c]pyridine-3,6-dione
- Siastatin B microbial◐ .Made to order · 8–12 wks Item #: S335410View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (3S,4S,5R,6R)-6-acetamido-4,5-dihydroxypiperidine-3-carboxylic acid
- SMILES
- CC(=O)NC1C(C(C(CN1)C(=O)O)O)O
- InChIKey
- DQTKLICLJUKNCG-ZTYPAOSTSA-N
- InChI
- 1S/C8H14N2O5/c1-3(11)10-7-6(13)5(12)4(2-9-7)8(14)15/h4-7,9,12-13H,2H2,1H3,(H,10,11)(H,14,15)/t4-,5-,6-,7+/m0/s1
- Synonyms
- (3S,4S,5R,6R)-6-acetamido-4,5-dihydroxypiperidine-3-carboxylic acid | starbld0005055 | Siastatin B, lyophilized powde...
- Sertaconazole nitrate, Cytochrome P450 51 inhibitorCAS: 99592-39-9 EC Number: 893-241-3 PubChem CID: 200103 Formula: C20H15Cl3N2OS·HNO3 Molecular Weight: 500.7810mM in DMSO● In Stock — US warehouse, ships to EU* Item #: S427226View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-[2-[(7-chloro-1-benzothiophen-3-yl)methoxy]-2-(2,4-dichlorophenyl)ethyl]imidazole;nitric acid
- SMILES
- C1=CC2=C(C(=C1)Cl)SC=C2COC(CN3C=CN=C3)C4=C(C=C(C=C4)Cl)Cl.[N+](=O)(O)[O-]
- InChIKey
- HAAITRDZHUANGT-UHFFFAOYSA-N
- InChI
- 1S/C20H15Cl3N2OS.HNO3/c21-14-4-5-16(18(23)8-14)19(9-25-7-6-24-12-25)26-10-13-11-27-20-15(13)2-1-3-17(20)22;2-1(3)4/h1-8,11-12,19H,9-10H2;(H,2,3,4)
- Synonyms
- HMS1571A12 | CAS-99592-39-9 | A851341 | 1-{2-[(7-chloro-1-benzothiophen-3-yl)methoxy]-2-(2,4-dichlorophenyl)ethyl}-1H...
- Shanzhiside methyl ester● In Stock — US warehouse, ships to EU* Item #: S414383View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- CC1(CC(C2C1C(OC=C2C(=O)OC)OC3C(C(C(C(O3)CO)O)O)O)O)O
- InChIKey
- KKSYAZCUYVRKML-IRDZEPHTSA-N
- InChI
- show more
- Synonyms
- methyl (1S,5R,7S)-5,7-dihydroxy-7-methyl-1-[(2R,3S,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4a,5,6,7...
- Shanzhiside methyl ester10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: S425262View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- CC1(CC(C2C1C(OC=C2C(=O)OC)OC3C(C(C(C(O3)CO)O)O)O)O)O
- InChIKey
- KKSYAZCUYVRKML-IRDZEPHTSA-N
- InChI
- show more
- Synonyms
- methyl (1S,5R,7S)-5,7-dihydroxy-7-methyl-1-[(2R,3S,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4a,5,6,7...
- Shield-1◐ .Made to order · 8–12 wks Item #: S412964View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- [(1R)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2S)-1-[(2S)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate
- SMILES
- CCC(C1=CC(=C(C(=C1)OC)OC)OC)C(=O)N2CCCCC2C(=O)OC(CCC3=CC(=C(C=C3)OC)OC)C4=CC(=CC=C4)OCCN5CCOCC5
- InChIKey
- NMFHJNAPXOMSRX-PUPDPRJKSA-N
- InChI
- show more
- Sephin-1CAS: 951441-04-6 Formula: C8H9ClN4 Molecular Weight: 196.64● In Stock — US warehouse, ships to EU* Item #: S413430View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[(E)-(2-chlorophenyl)methylideneamino]guanidine
- SMILES
- C1=CC=C(C(=C1)C=NN=C(N)N)Cl
- InChIKey
- PDWJALXSRRSUHR-LFYBBSHMSA-N
- InChI
- 1S/C8H9ClN4/c9-7-4-2-1-3-6(7)5-12-13-8(10)11/h1-5H,(H4,10,11,13)/b12-5+
- Synonyms
- AKOS001595395 | Icerguastat | SCHEMBL5460773 | 2-[(E)-(2-Chlorophenyl)methylideneamino]guanidine | NSC-118376 | EINEC...
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.