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
Browse by type, application, or key specifications such as purity, grade, packaging, and handling requirements.
137,004 products
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
24,653Navigate 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
2,812PROTAC 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
102,662Explore 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)
19,717Find 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 (where available)—to build screening and validation sets.
By Disease (DOID)
8,794Shop 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.
Popular Products
- D-threo-PDMPCAS: 109836-82-0 Formula: C23H38N2O3.HCl Molecular Weight: 427.02◐ .Made to order · 8–12 wks Item #: D274754View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[(1R,2R)-1-hydroxy-3-morpholin-4-yl-1-phenylpropan-2-yl]decanamide;hydrochloride
- SMILES
- CCCCCCCCCC(=O)NC(CN1CCOCC1)C(C2=CC=CC=C2)O.Cl
- InChIKey
- HVJHJOYQTSEKPK-BLDCTAJRSA-N
- InChI
- show more
- Synonyms
- N-[(1R,2R)-1-hydroxy-3-morpholin-4-yl-1-phenylpropan-2-yl]decanamide;hydrochloride | AKOS040755898 | SMR000326846 | E...
- Bcl-2 Inhibitor II, YC137CAS: 810659-53-1 Formula: C24H21N3O6S2 Molecular Weight: 511.6◐ .Made to order · 8–12 wks Item #: B335777View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- [4-[(4,9-dioxobenzo[f][1,3]benzothiazol-2-yl)amino]phenyl] 2-(methoxycarbonylamino)-4-methylsulfanylbutanoate
- SMILES
- COC(=O)NC(CCSC)C(=O)OC1=CC=C(C=C1)NC2=NC3=C(S2)C(=O)C4=CC=CC=C4C3=O
- InChIKey
- SFDSXIZFOOBDMC-UHFFFAOYSA-N
- InChI
- show more
- 1-(3-Bromophenyl)piperazine HydrochlorideCAS: 796856-45-6 EC Number: 691-291-9 PubChem CID: 12227893 Formula: C10H14BrClN2 Molecular Weight: 277.59● In Stock — US warehouse, ships to EU* Item #: B337652View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-(3-bromophenyl)piperazine;hydrochloride
- SMILES
- C1CN(CCN1)C2=CC(=CC=C2)Br.Cl
- InChIKey
- INFIKWJCWNZVSH-UHFFFAOYSA-N
- InChI
- 1S/C10H13BrN2.ClH/c11-9-2-1-3-10(8-9)13-6-4-12-5-7-13;/h1-3,8,12H,4-7H2;1H
- Synonyms
- 1-(m-Bromophenyl)piperazine Hydrochloride | SCHEMBL4661519 | EN300-206595 | 1-(3-Bromophenyl)piperazine*hcl | AS-4419...
- GSK-J2CAS: 1394854-52-4 Formula: C22H23N5O2 Molecular Weight: 389.4● In Stock — US warehouse, ships to EU* Item #: G275564View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-[[2-pyridin-3-yl-6-(1,2,4,5-tetrahydro-3-benzazepin-3-yl)pyrimidin-4-yl]amino]propanoic acid
- SMILES
- C1CN(CCC2=CC=CC=C21)C3=NC(=NC(=C3)NCCC(=O)O)C4=CN=CC=C4
- InChIKey
- LJIFOCRGDDQFJF-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- 3-[[2-(3-pyridinyl)-6-(1,2,4,5-tetrahydro-3-benzazepin-3-yl)-4-pyrimidinyl]amino]propanoic acid | BCP08263 | SCHEMBL1...
- GW788388CAS: 452342-67-5 Formula: C25H23N5O2 Molecular Weight: 425.48● In Stock — US warehouse, ships to EU* Item #: G125999View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-(oxan-4-yl)-4-[4-(5-pyridin-2-yl-1H-pyrazol-4-yl)pyridin-2-yl]benzamide
- SMILES
- C1COCCC1NC(=O)C2=CC=C(C=C2)C3=NC=CC(=C3)C4=C(NN=C4)C5=CC=CC=N5
- InChIKey
- SAGZIBJAQGBRQA-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- FT-0700309 | HMS3656N21 | UNII-N14114957J | Q27284368 | N-(oxan-4-yl)-4-{4-[3-(pyridin-2-yl)-1H-pyrazol-4-yl]pyridin-...
- MCD peptideCAS: 74601-64-2 Formula: C110H192N40O24S4 Molecular Weight: 2588◐ .Made to order · 8–12 wks Item #: M275018View ProductPricing & Pack Sizes
Technical Identifiers
- ML 281CAS: 1404437-62-2 Formula: C22H19N3O2S Molecular Weight: 389.47● In Stock — US warehouse, ships to EU* Item #: M288707View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[2-(3-oxo-4H-quinoxalin-2-yl)-4-propan-2-ylphenyl]thiophene-2-carboxamide
- SMILES
- CC(C)C1=CC(=C(C=C1)NC(=O)C2=CC=CS2)C3=NC4=CC=CC=C4NC3=O
- InChIKey
- HWOYIOLMBQSTQS-UHFFFAOYSA-N
- InChI
- 1S/C22H19N3O2S/c1-13(2)14-9-10-16(24-21(26)19-8-5-11-28-19)15(12-14)20-22(27)25-18-7-4-3-6-17(18)23-20/h3-13H,1-2H3,(H,24,26)(H,25,27)
- Synonyms
- N-[2-(3,4-Dihydro-3-oxo-2-quinoxalinyl)-4-(1-methylethyl)phenyl]-2-thiophenecarboxamide | N-(4-isopropyl-2-(3-oxo-3,4...
- ML 311CAS: 315698-17-0 Formula: C23H24F3N3O Molecular Weight: 415.45● In Stock — US warehouse, ships to EU* Item #: M287852View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 7-[(4-ethylpiperazin-1-yl)-[4-(trifluoromethyl)phenyl]methyl]quinolin-8-ol
- SMILES
- CCN1CCN(CC1)C(C2=CC=C(C=C2)C(F)(F)F)C3=C(C4=C(C=CC=N4)C=C3)O
- InChIKey
- NGAPBLRRJSKIRT-UHFFFAOYSA-N
- InChI
- 1S/C23H24F3N3O/c1-2-28-12-14-29(15-13-28)21(17-5-8-18(9-6-17)23(24,25)26)19-10-7-16-4-3-11-27-20(16)22(19)30/h3-11,21,30H,2,12-15H2,1H3
- Synonyms
- 7-[(4-Ethyl-1-piperazinyl)[4-(trifluoromethyl)phenyl]methyl]-8-quinolinol
- MMAFCAS: 745017-94-1 Formula: C39H65N5O8 Molecular Weight: 731.96● In Stock — US warehouse, ships to EU* Item #: M395755View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- CCC(C)C(C(CC(=O)N1CCCC1C(C(C)C(=O)NC(CC2=CC=CC=C2)C(=O)O)OC)OC)N(C)C(=O)C(C(C)C)NC(=O)C(C(C)C)NC
- InChIKey
- MFRNYXJJRJQHNW-DEMKXPNLSA-N
- InChI
- show more
- Synonyms
- MMAF | (2S)-2-[[(2R,3R)-3-methoxy-3-[(2S)-1-[(3R,4S,5S)-3-methoxy-5-methyl-4-[methyl-[(2S)-3-methyl-2-[[(2S)-3-methyl...
- Citric AcidMoligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. 10% (w/v)● In Stock — Germany Item #: C291948View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-hydroxypropane-1,2,3-tricarboxylic acid
- SMILES
- C(C(=O)O)C(CC(=O)O)(C(=O)O)O
- InChIKey
- KRKNYBCHXYNGOX-UHFFFAOYSA-N
- InChI
- 1S/C6H8O7/c7-3(8)1-6(13,5(11)12)2-4(9)10/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
- Synonyms
- Citric acid monoglyceride | Citric acid, 99% | ANHYDROUS CITRIC ACID COMPONENT OF CLENPIQ | HSDB 911 | NCIOpen2_00450...
- NIBR 189● In Stock — US warehouse, ships to EU* Item #: N287719View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (E)-3-(4-bromophenyl)-1-[4-(4-methoxybenzoyl)piperazin-1-yl]prop-2-en-1-one
- SMILES
- COC1=CC=C(C=C1)C(=O)N2CCN(CC2)C(=O)C=CC3=CC=C(C=C3)Br
- InChIKey
- OFHXXBRBGWUOHR-NYYWCZLTSA-N
- InChI
- 1S/C21H21BrN2O3/c1-27-19-9-5-17(6-10-19)21(26)24-14-12-23(13-15-24)20(25)11-4-16-2-7-18(22)8-3-16/h2-11H,12-15H2,1H3/b11-4+
- Synonyms
- EX-A1054 | SCHEMBL16598583 | (2E)-3-(4-Bromophenyl)-1-[4-4-methoxybenzoyl)-1-piperazinyl]-2-propene-1-one | BDBM50011...
- Lorcainide hydrochlorideCAS: 58934-46-6 Formula: C22H27ClN2O.HCl Molecular Weight: 407.4◐ .Made to order · 8–12 wks Item #: L274808View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-(4-chlorophenyl)-2-phenyl-N-(1-propan-2-ylpiperidin-4-yl)acetamide;hydrochloride
- SMILES
- CC(C)N1CCC(CC1)N(C2=CC=C(C=C2)Cl)C(=O)CC3=CC=CC=C3.Cl
- InChIKey
- FSFSWNBDCJVFGI-UHFFFAOYSA-N
- InChI
- 1S/C22H27ClN2O.ClH/c1-17(2)24-14-12-21(13-15-24)25(20-10-8-19(23)9-11-20)22(26)16-18-6-4-3-5-7-18;/h3-11,17,21H,12-16H2,1-2H3;1H
- Synonyms
- N-(4-Chlorophenyl)-N-(1-isopropyl-4-piperidyl)phenylacetamide monohydrochloride | Lopantrol | N-(4-chlorophenyl)-2-ph...
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.