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
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
- Loxapine succinate, Serotonin 2c (5-HT2c) receptor antagonistCAS: 27833-64-3 EC Number: 248-682-0 PubChem CID: 71399 Formula: C22H24ClN3O5 Molecular Weight: 445.910mM in DMSO● In Stock — US warehouse, ships to EU* Item #: L422975View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- butanedioic acid;8-chloro-6-(4-methylpiperazin-1-yl)benzo[b][1,4]benzoxazepine
- SMILES
- CN1CCN(CC1)C2=NC3=CC=CC=C3OC4=C2C=C(C=C4)Cl.C(CC(=O)O)C(=O)O
- InChIKey
- YQZBAXDVDZTKEQ-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- HMS2095K06 | LOXAPINE SUCCINATE [ORANGE BOOK] | 2-Chloro-11-(4-methyl-1-piperazinyl)dibenz(b,f)(1,4)oxazepine Succina...
- Lurasidone Hydrochloride, Dopamine D2 receptor antagonistCAS: 367514-88-3 Formula: C28H37ClN4O2S Molecular Weight: 529.14● In Stock — US warehouse, ships to EU* Item #: L303563View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- C1CCC(C(C1)CN2CCN(CC2)C3=NSC4=CC=CC=C43)CN5C(=O)C6C7CCC(C7)C6C5=O.Cl
- InChIKey
- NEKCRUIRPWNMLK-SCIYSFAVSA-N
- InChI
- show more
- Synonyms
- (3aR,4S,7R,7aS)-2-((1R,2R)-2-(4-(1,2-Benzisothiazol-3-yl)piperazin-1-ylmethyl)cyclohexylmethyl)hexahydro-4,7-methano-...
- Lycorine hydrochlorideCAS: 2188-68-3 Formula: C16H18ClNO4·HCl Molecular Weight: 323.7710mM in DMSO● In Stock — US warehouse, ships to EU* Item #: L422628View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 58F70VH0HS | NSC14453 | UNII-58F70VH0HS | Lycorine-chloride | Q-100273 | s3800 | BS-42350 | Narcissine hydrochloride ...
- Lycorine hydrochlorideCAS: 2188-68-3 Formula: C16H18ClNO4·HCl Molecular Weight: 323.77Analytical standard ? Analytical standard — certified-purity material for quantitative calibration. Use to prepare calibration standards and validate analytical methods.● In Stock — US warehouse, ships to EU* Item #: L101559View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (1S,17S,18S,19S)-5,7-dioxa-12-azapentacyclo[10.6.1.02,10.04,8.015,19]nonadeca-2,4(8),9,15-tetraene-17,18-diol;hydrochloride
- SMILES
- C1CN2CC3=CC4=C(C=C3C5C2C1=CC(C5O)O)OCO4.Cl
- InChIKey
- VUVNTYCHKZBOMV-NVJKKXITSA-N
- InChI
- 1S/C16H17NO4.ClH/c18-11-3-8-1-2-17-6-9-4-12-13(21-7-20-12)5-10(9)14(15(8)17)16(11)19;/h3-5,11,14-16,18-19H,1-2,6-7H2;1H/t11-,14-,15+,16+;/m0./s1
- Synonyms
- 58F70VH0HS | NSC14453 | UNII-58F70VH0HS | Lycorine-chloride | Q-100273 | s3800 | BS-42350 | Narcissine hydrochloride ...
- Luminespib (NVP-AUY922), Inhibitor of heat shock protein 90 alpha family class B member 1;Inhibitor of TNF receptor associated protein 1CAS: 747412-49-3 Formula: C26H31N3O5 Molecular Weight: 465.54Moligand™ ? 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 #: L409072View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- AUY-922, VER-52296 | 5-(2,4-dihydroxy-5-isopropylphenyl)-N-ethyl-4-(4-(morpholinomethyl)phenyl)isoxazole-3-carboxamide
- Loxoprofen, Cyclooxygenase inhibitor10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: L425507View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[4-[(2-oxocyclopentyl)methyl]phenyl]propanoic acid
- SMILES
- CC(C1=CC=C(C=C1)CC2CCCC2=O)C(=O)O
- InChIKey
- YMBXTVYHTMGZDW-UHFFFAOYSA-N
- InChI
- 1S/C15H18O3/c1-10(15(17)18)12-7-5-11(6-8-12)9-13-3-2-4-14(13)16/h5-8,10,13H,2-4,9H2,1H3,(H,17,18)
- Synonyms
- sodium loxoprofen | s4682 | SY113439 | 2-{4-[(2-oxocyclopentyl)methyl]phenyl}propanoic acid | Q-201324 | 2-(4-((2-OXO...
- Loxoprofen sodiumCAS: 80382-23-6 Formula: C15H17O3Na Molecular Weight: 268.28610mM in Water● In Stock — US warehouse, ships to EU* Item #: L426080View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- sodium;2-[4-[(2-oxocyclopentyl)methyl]phenyl]propanoate
- SMILES
- CC(C1=CC=C(C=C1)CC2CCCC2=O)C(=O)[O-].[Na+]
- InChIKey
- WORCCYVLMMTGFR-UHFFFAOYSA-M
- InChI
- 1S/C15H18O3.Na/c1-10(15(17)18)12-7-5-11(6-8-12)9-13-3-2-4-14(13)16;/h5-8,10,13H,2-4,9H2,1H3,(H,17,18);/q;+1/p-1
- Synonyms
- BL164648 | Loxoprofen sodium | CCG-101024 | Q-201325 | AKOS015994737 | Naptalam, analytical standard | LOXOPROFEN SOD...
- Lu AF21934CAS: 1445605-23-1 Formula: C14H16Cl2N2O2 Molecular Weight: 315.20● In Stock — US warehouse, ships to EU* Item #: L412256View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (1R,2S)-2-N-(3,4-dichlorophenyl)cyclohexane-1,2-dicarboxamide
- SMILES
- C1CCC(C(C1)C(=O)N)C(=O)NC2=CC(=C(C=C2)Cl)Cl
- InChIKey
- AVKZWCJNDWOBAM-ZJUUUORDSA-N
- InChI
- 1S/C14H16Cl2N2O2/c15-11-6-5-8(7-12(11)16)18-14(20)10-4-2-1-3-9(10)13(17)19/h5-7,9-10H,1-4H2,(H2,17,19)(H,18,20)/t9-,10+/m1/s1
- LucanthoneCAS: 479-50-5 Formula: C20H24N2OS Molecular Weight: 340.4810mM in DMSO● In Stock — US warehouse, ships to EU* Item #: L424164View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-[2-(diethylamino)ethylamino]-4-methylthioxanthen-9-one
- SMILES
- CCN(CC)CCNC1=C2C(=C(C=C1)C)SC3=CC=CC=C3C2=O
- InChIKey
- FBQPGGIHOFZRGH-UHFFFAOYSA-N
- InChI
- 1S/C20H24N2OS/c1-4-22(5-2)13-12-21-16-11-10-14(3)20-18(16)19(23)15-8-6-7-9-17(15)24-20/h6-11,21H,4-5,12-13H2,1-3H3
- Synonyms
- Lucanthone [INN:BAN] | LUCANTHONE [MI] | 9H-Thioxanthen-9-one, 1-((2-(diethylamino)ethyl)amino)-4-methyl- | BDBM50030...
- LucanthoneCAS: 479-50-5 Formula: C20H24N2OS Molecular Weight: 340.48● In Stock — US warehouse, ships to EU* Item #: L413471View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-[2-(diethylamino)ethylamino]-4-methylthioxanthen-9-one
- SMILES
- CCN(CC)CCNC1=C2C(=C(C=C1)C)SC3=CC=CC=C3C2=O
- InChIKey
- FBQPGGIHOFZRGH-UHFFFAOYSA-N
- InChI
- 1S/C20H24N2OS/c1-4-22(5-2)13-12-21-16-11-10-14(3)20-18(16)19(23)15-8-6-7-9-17(15)24-20/h6-11,21H,4-5,12-13H2,1-3H3
- Synonyms
- Lucanthone [INN:BAN] | LUCANTHONE [MI] | 9H-Thioxanthen-9-one, 1-((2-(diethylamino)ethyl)amino)-4-methyl- | BDBM50030...
- Lumiracoxib, Cyclooxygenase-2 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 warehouse, ships to EU* Item #: L408379View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- COX-189 | Benzeneacetic acid, 2-[(2-chloro-6-fluorophenyl)amino]-5-methyl-
- Lumacaftor (VX-809), Cystic fibrosis transmembrane conductance regulator stabiliserCAS: 936727-05-8 EC Number: 811-416-4 PubChem CID: 16678941 Formula: C24H18F2N2O5 Molecular Weight: 452.41Moligand™ ? 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 #: L408585View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- VRT 826809 | 3-(6-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxamido)-3-methylpyridin-2-yl)benzoic acid
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.