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
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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
24,638Navigate 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 for designing and evaluating ADC constructs.
PROTAC
2,815PROTAC and targeted protein degradation tools for discovery research. Browse degrader-related ligands, linkers, and building blocks to assemble or screen PROTAC designs, with clear identifiers for efficient selection.
By Signaling Pathways
102,614Explore 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
- DxdCAS: 1599440-33-1 Formula: C26H24FN3O6 Molecular Weight: 493.48● In Stock — US Item #: D303024View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- CCC1(C2=C(COC1=O)C(=O)N3CC4=C5C(CCC6=C5C(=CC(=C6C)F)N=C4C3=C2)NC(=O)CO)O
- InChIKey
- PLXLYXLUCNZSAA-QLXKLKPCSA-N
- InChI
- show more
- Synonyms
- A936339 | N-[(10S,23S)-10-ethyl-18-fluoro-10-hydroxy-19-methyl-5,9-dioxo-8-oxa-4,15-diazahexacyclo[14.7.1.0,.0,.0,.0,...
- Doxylamine Succinate, Histamine H1 receptor antagonist10mM in DMSO● In Stock — US Item #: D424761View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- butanedioic acid;N,N-dimethyl-2-(1-phenyl-1-pyridin-2-ylethoxy)ethanamine
- SMILES
- CC(C1=CC=CC=C1)(C2=CC=CC=N2)OCCN(C)C.C(CC(=O)O)C(=O)O
- InChIKey
- KBAUFVUYFNWQFM-UHFFFAOYSA-N
- InChI
- 1S/C17H22N2O.C4H6O4/c1-17(20-14-13-19(2)3,15-9-5-4-6-10-15)16-11-7-8-12-18-16;5-3(6)1-2-4(7)8/h4-12H,13-14H2,1-3H3;1-2H2,(H,5,6)(H,7,8)
- Synonyms
- Doxylamine succinate|562-10-7|Decapryn|Gittalun|Unisom|Hoggar N|Doxylamine (succinate)|Doxylamine succinate salt|Doxy...
- Dracohodin perochlorate10mM in DMSO● In Stock — US Item #: D421070View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-methoxy-6-methyl-2-phenylchromenylium-7-ol;perchlorate
- SMILES
- CC1=C(C2=C(C=C1O)[O+]=C(C=C2)C3=CC=CC=C3)OC.[O-]Cl(=O)(=O)=O
- InChIKey
- KRTYZFUODYMZPG-UHFFFAOYSA-N
- InChI
- 1S/C17H14O3.ClHO4/c1-11-14(18)10-16-13(17(11)19-2)8-9-15(20-16)12-6-4-3-5-7-12;2-1(3,4)5/h3-10H,1-2H3;(H,2,3,4,5)
- Synonyms
- 1-Benzopyrylium,7-hydroxy-5-methoxy-6-methyl-2-phenyl-,perchlorate (1:1)
- Dracohodin perochlorate● In Stock — US Item #: D414379View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-methoxy-6-methyl-2-phenylchromenylium-7-ol;perchlorate
- SMILES
- CC1=C(C2=C(C=C1O)[O+]=C(C=C2)C3=CC=CC=C3)OC.[O-]Cl(=O)(=O)=O
- InChIKey
- KRTYZFUODYMZPG-UHFFFAOYSA-N
- InChI
- 1S/C17H14O3.ClHO4/c1-11-14(18)10-16-13(17(11)19-2)8-9-15(20-16)12-6-4-3-5-7-12;2-1(3,4)5/h3-10H,1-2H3;(H,2,3,4,5)
- Synonyms
- 1-Benzopyrylium,7-hydroxy-5-methoxy-6-methyl-2-phenyl-,perchlorate (1:1) | Dracorhodin perchlorate
- Drofenine HydrochlorideCAS: 548-66-3 Formula: C20H32ClNO2 Molecular Weight: 353.9310mM in DMSO● In Stock — US Item #: D424676View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(diethylamino)ethyl 2-cyclohexyl-2-phenylacetate;hydrochloride
- SMILES
- CCN(CC)CCOC(=O)C(C1CCCCC1)C2=CC=CC=C2.Cl
- InChIKey
- WIELVDXKOYPANK-UHFFFAOYSA-N
- InChI
- 1S/C20H31NO2.ClH/c1-3-21(4-2)15-16-23-20(22)19(17-11-7-5-8-12-17)18-13-9-6-10-14-18;/h5,7-8,11-12,18-19H,3-4,6,9-10,13-16H2,1-2H3;1H
- Synonyms
- 2-AMINO-2-P-TOLYLACETIC ACID | Cyclospasmol (tempelhof) | SCHEMBL446912 | 2-Chloropyridine-5-carbonitrile | Cyclospas...
- Dronedarone, Inhibitor of K v1.5Moligand™ ? 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 Item #: D421540View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[2-butyl-3-[4-[3-(dibutylamino)propoxy]benzoyl]-1-benzofuran-5-yl]methanesulfonamide
- SMILES
- CCCCC1=C(C2=C(O1)C=CC(=C2)NS(=O)(=O)C)C(=O)C3=CC=C(C=C3)OCCCN(CCCC)CCCC
- InChIKey
- ZQTNQVWKHCQYLQ-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- Multaq | A807786 | HY-A0016 | NCGC00188863-02 | Tox21_113008 | DTXSID3048653 | N-(2-Butyl-3-(4-(3-(dibutylamino)propo...
- Dynole ® 2-24◐ .Made to order · 8–12 wks Item #: D275729View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- N-[[1-[3-(Dimethylamino)propyl]-1H-indol-3-yl]methyl]decan-1-amine
- Droperidol, D2-like dopamine 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 Item #: D424677View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-[1-[4-(4-fluorophenyl)-4-oxobutyl]-3,6-dihydro-2H-pyridin-4-yl]-1H-benzimidazol-2-one
- SMILES
- C1CN(CC=C1N2C3=CC=CC=C3NC2=O)CCCC(=O)C4=CC=C(C=C4)F
- InChIKey
- RMEDXOLNCUSCGS-UHFFFAOYSA-N
- InChI
- 1S/C22H22FN3O2/c23-17-9-7-16(8-10-17)21(27)6-3-13-25-14-11-18(12-15-25)26-20-5-2-1-4-19(20)24-22(26)28/h1-2,4-5,7-11H,3,6,12-15H2,(H,24,28)
- Synonyms
- Droleptan | DROPERIDOL [USP MONOGRAPH] | HS-0065 | Inapsine | 1-(1-[3-(p-fluorobenzoyl)propyl]-1,2,3,6-tetrahydro-4-p...
- Drospirenone, Progesterone receptor 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 Item #: D408852View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- ZK 3059 | Spiro[17H-dicyclopropa[6,7:15,16]cyclopenta[a]phenanthrene-17,2'(5'H)-furan]-3,5'(2H)-dione,
- DrotaveraldineSolid ≥95%● In Stock — US Item #: D350026View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (6,7-diethoxy-3,4-dihydroisoquinolin-1-yl)-(3,4-diethoxyphenyl)methanone
- SMILES
- CCOC1=C(C=C(C=C1)C(=O)C2=NCCC3=CC(=C(C=C32)OCC)OCC)OCC
- InChIKey
- GWEJBCQISYBHHZ-UHFFFAOYSA-N
- InChI
- 1S/C24H29NO5/c1-5-27-19-10-9-17(14-20(19)28-6-2)24(26)23-18-15-22(30-8-4)21(29-7-3)13-16(18)11-12-25-23/h9-10,13-15H,5-8,11-12H2,1-4H3
- Synonyms
- 1-(3,4-diethoxybenzoyl)-6,7-diethoxy-3,4-dihydroisoquinoline | (6,7-diethoxy-3,4-dihydroisoquinolin-1-yl)-(3,4-dietho...
- Drotaverine-d10 HydrochlorideCAS: 985-12-6 unlabeled Formula: C24H22D10ClNO4 Molecular Weight: 444.03● In Stock — US Item #: D350014View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 1-[(3,4-Diethoxyphenyl)methylene]-6,7-(diethoxy-d10)-1,2,3,4-tetrahydroisoquinoline Hydrochloride | Isodihydroperpari...
- Droxidopa（L-DOPS）, Antagonist of M 1 receptorMoligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. 2mM in DMSO● In Stock — US Item #: D422774View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2S,3R)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid
- SMILES
- C1=CC(=C(C=C1C(C(C(=O)O)N)O)O)O
- InChIKey
- QXWYKJLNLSIPIN-JGVFFNPUSA-N
- InChI
- 1S/C9H11NO5/c10-7(9(14)15)8(13)4-1-2-5(11)6(12)3-4/h1-3,7-8,11-13H,10H2,(H,14,15)/t7-,8+/m0/s1
- Synonyms
- droxidopa|23651-95-8|L-DOPS|DOPS|Northera|(2S,3R)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid|3916-18-5|D...
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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.