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
- Midodrine hydrochloride, Adrenergic receptor alpha-1 agonist● In Stock — US warehouse, ships to EU* Item #: M413320View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-amino-N-[2-(2,5-dimethoxyphenyl)-2-hydroxyethyl]acetamide;hydrochloride
- SMILES
- COC1=CC(=C(C=C1)OC)C(CNC(=O)CN)O.Cl
- InChIKey
- MGCQZNBCJBRZDT-UHFFFAOYSA-N
- InChI
- 1S/C12H18N2O4.ClH/c1-17-8-3-4-11(18-2)9(5-8)10(15)7-14-12(16)6-13;/h3-5,10,15H,6-7,13H2,1-2H3,(H,14,16);1H
- Synonyms
- HMS1922O03 | SR-05000001847-3 | (+/-)-2-AMINO-N-(beta-HYDROXY-2,5-DIMETHOXYPHENETHYL)ACETAMIDE MONOHYDROCHLORIDE | 2-...
- MetronidazoleMoligand™ ? 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 #: M408417View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 2-methyl-5-nitro-1H-imidazole-1-ethanol
- Mianserin HCl10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: M408402View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- ORG GB-94 HCl | Dibenzo[c,f]pyrazino[1,2-a]azepine, 1,2,3,4,10,14b-hexahydro-2-methyl-, hydrochloride
- Mifepristone (RU486), Progesterone 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 warehouse, ships to EU* Item #: M408467View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- C-1073, RU 38486, Mifegyne | (11β,17β)-11-[4-(dimethylamino)phenyl]-17-hydroxy-17-(1-propyn-1-yl)-estra-�...
- Miglitol, Inhibitor of alpha glucosidase;Inhibitor of maltase-glucoamylaseMoligand™ ? 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 #: M408218View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- BAY-M-1099 | (2R,3R,4R,5S)-1-(2-hydroxyethyl)-2-(hydroxymethyl)-3,4,5-piperidinetriol
- Miglitol-d4 Hydrochloride, Lysosomal alpha-glucosidase inhibitorCAS: 1204250-58-7(unlabeled) Formula: C₈H₁₃D₄NO₅・HCl Molecular Weight: 247.71◐ .Made to order · 8–12 wks Item #: M333415View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2R,3R,4R,5S)-1-(2-hydroxyethyl)-2-(hydroxymethyl)piperidine-3,4,5-triol
- SMILES
- C1C(C(C(C(N1CCO)CO)O)O)O
- InChIKey
- IBAQFPQHRJAVAV-ULAWRXDQSA-N
- InChI
- 1S/C8H17NO5/c10-2-1-9-3-6(12)8(14)7(13)5(9)4-11/h5-8,10-14H,1-4H2/t5-,6+,7-,8-/m1/s1
- Synonyms
- BIDD:GT0732 | MIGLITOL [ORANGE BOOK] | Tox21_111436 | (2R,3R,4R,5S)-1-(2-Hydroxyethyl)-2-(2-hydroxymethyl)-3,4,5-pipe...
- Midodrine, Hydrochloride◐ .Made to order · 8–12 wks Item #: M348629View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-amino-N-[2-(2,5-dimethoxyphenyl)-2-hydroxyethyl]acetamide;hydrochloride
- SMILES
- COC1=CC(=C(C=C1)OC)C(CNC(=O)CN)O.Cl
- InChIKey
- MGCQZNBCJBRZDT-UHFFFAOYSA-N
- InChI
- 1S/C12H18N2O4.ClH/c1-17-8-3-4-11(18-2)9(5-8)10(15)7-14-12(16)6-13;/h3-5,10,15H,6-7,13H2,1-2H3,(H,14,16);1H
- Synonyms
- HMS1922O03 | SR-05000001847-3 | (+/-)-2-AMINO-N-(beta-HYDROXY-2,5-DIMETHOXYPHENETHYL)ACETAMIDE MONOHYDROCHLORIDE | 2-...
- Milrinone, Inhibitor of phosphodiesterase 2A;Inhibitor of phosphodiesterase 3A;Inhibitor of phosphodiesterase 3B;Inhibitor of phosphodiesterase 5AMoligand™ ? 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 #: M407942View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Win 47203 | 1,6-dihydro-2-methyl-6-oxo-[3,4'-bipyridine]-5-carbonitrile
- Mirtazapine, Adrenergic receptor alpha-2 antagonist10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: M408986View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Org3770 | 1,2,3,4,10,14b-hexahydro-2-methyl-pyrazino[2,1-a]pyrido[2,3-c][2]benzazepine
- Mito-TEMPOCAS: 1334850-99-5 Formula: C29H36ClN2O2P Molecular Weight: 51110mM in DMSO● In Stock — US warehouse, ships to EU* Item #: M421267View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- [2-[(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl)amino]-2-oxoethyl]-triphenylphosphanium;chloride
- SMILES
- CC1(CC(CC(N1O)(C)C)NC(=O)C[P+](C2=CC=CC=C2)(C3=CC=CC=C3)C4=CC=CC=C4)C.[Cl-]
- InChIKey
- QJEOOHMMSUBNGG-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- 1-Piperidinyloxy,2,2,6,6-tetramethyl-4-[[2-(triphenylphosphonio)acetyl]amino]-,chloride (1:1)
- Miransertib hydrochlorideCAS: 1313883-00-9 Formula: C27H25ClN6 Molecular Weight: 468.98● In Stock — US warehouse, ships to EU* Item #: M413976View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-[3-[4-(1-aminocyclobutyl)phenyl]-5-phenylimidazo[4,5-b]pyridin-2-yl]pyridin-2-amine;hydrochloride
- SMILES
- C1CC(C1)(C2=CC=C(C=C2)N3C4=C(C=CC(=N4)C5=CC=CC=C5)N=C3C6=C(N=CC=C6)N)N.Cl
- InChIKey
- DRHSWSSVIKDJME-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- Miransertib3-[3-[4-(1-aminocyclobutyl)phenyl]-5-phenyl-3H-imidazo[4,5-b]pyridin-2-yl]-2-Pyridinamine ...
- MirinCAS: 1198097-97-0 Formula: C10H8N2O2S Molecular Weight: 220.2510mM in DMSO● In Stock — US warehouse, ships to EU* Item #: M420877View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (5Z)-5-[(4-hydroxyphenyl)methylidene]-2-imino-1,3-thiazolidin-4-one
- SMILES
- C1=CC(=CC=C1C=C2C(=O)NC(=N)S2)O
- InChIKey
- YBHQCJILTOVLHD-YVMONPNESA-N
- InChI
- 1S/C10H8N2O2S/c11-10-12-9(14)8(15-10)5-6-1-3-7(13)4-2-6/h1-5,13H,(H2,11,12,14)/b8-5-
- Synonyms
- 1198097-97-0|(Z)-2-amino-5-(4-hydroxybenzylidene)thiazol-4(5H)-one|CHEMBL570841|Mrn-atm pathway inhibitor,mirin|SCHEM...
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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.