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
24,643Navigate 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
102,641Explore 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)
19,704Find 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)
8,783Shop 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
- Plinabulin (NPI-2358), Tubulin inhibitorCAS: 714272-27-2 Formula: C19H20N4O2 Molecular Weight: 336.39● In Stock — US warehouse, ships to EU* Item #: P126141View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (3Z,6Z)-3-benzylidene-6-[(5-tert-butyl-1H-imidazol-4-yl)methylidene]piperazine-2,5-dione
- SMILES
- CC(C)(C)C1=C(N=CN1)C=C2C(=O)NC(=CC3=CC=CC=C3)C(=O)N2
- InChIKey
- UNRCMCRRFYFGFX-TYPNBTCFSA-N
- InChI
- 1S/C19H20N4O2/c1-19(2,3)16-13(20-11-21-16)10-15-18(25)22-14(17(24)23-15)9-12-7-5-4-6-8-12/h4-11H,1-3H3,(H,20,21)(H,22,25)(H,23,24)/b14-9-,15-10-
- Synonyms
- TRIBENOSIDE [MI] | DB05992 | 986FY7F8XR | HMS3884P14 | plinabulinum | Dibenzyl N, N-diisopropyl-phosphoramidite | Pli...
- Phenethyl dimethyl caffeateSolid ≥95%● In Stock — US warehouse, ships to EU* Item #: P340884View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-phenylethyl 3-(3,4-dimethoxyphenyl)prop-2-enoate
- SMILES
- COC1=C(C=C(C=C1)C=CC(=O)OCCC2=CC=CC=C2)OC
- InChIKey
- OHBFHJOQNCVEOU-UHFFFAOYSA-N
- InChI
- 1S/C19H20O4/c1-21-17-10-8-16(14-18(17)22-2)9-11-19(20)23-13-12-15-6-4-3-5-7-15/h3-11,14H,12-13H2,1-2H3
- Synonyms
- Phenethyl 3-(3,4-dimethoxyphenyl)acrylate | Caffeic Acid Dimethyl Ether Phenethyl Ester
- Aluminum Cobalt powderCAS: 11114-55-9 Formula: AlCo Molecular Weight: 85.914● In Stock — Germany Item #: A354457View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- aluminum;cobalt
- SMILES
- [Al].[Co]
- InChIKey
- MDKXFHZSHLHFLN-UHFFFAOYSA-N
- InChI
- 1S/Al.Co
- Synonyms
- MDKXFHZSHLHFLN-UHFFFAOYSA-N | aluminum-cobalt | MFCD00239520 | Aluminum Cobalt powder, -100 mesh | aluminum;cobalt | ...
- 6-Methoxypyridine-2-boronic acid(contains varying amounts of Anhydride)CAS: 372963-51-4 Formula: C6H8BNO3 Molecular Weight: 152.95Solid ≥95%◐ .Made to order · 8–12 wks Item #: M348860View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (6-methoxypyridin-2-yl)boronic acid
- SMILES
- B(C1=NC(=CC=C1)OC)(O)O
- InChIKey
- GQWZKBTZAFEQJZ-UHFFFAOYSA-N
- InChI
- 1S/C6H8BNO3/c1-11-6-4-2-3-5(8-6)7(9)10/h2-4,9-10H,1H3
- Synonyms
- DS-10588 | 6-Methoxypyridin-2-ylboronic acid | (6-methoxypyridin-2-yl)boronic Acid | 6-methoxypyridinylboronic acid |...
- Aluminum nitrate hydrateCAS: 25838-59-9 Formula: Al(NO3)3·xH2O Molecular Weight: 212.99(anhy)PrimorTrace™ ? PrimorTrace™ — Aladdin's trace-metal-analysis line with ultra-low metal background. Use for ICP/AAS trace-metal work where contamination must be minimal. ≥99.999% metals basis● In Stock — US warehouse, ships to EU* Item #: A303250View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- aluminum;trinitrate;hydrate
- SMILES
- [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.[Al+3]
- InChIKey
- ZZCONUBOESKGOK-UHFFFAOYSA-N
- InChI
- 1S/Al.3NO3.H2O/c;3*2-1(3)4;/h;;;;1H2/q+3;3*-1;
- Synonyms
- aluminum nitrate hydrate|25838-59-9|aluminum;trinitrate;hydrate|MFCD00748132|aluminum trinitrate hydrate|ZZCONUBOESKG...
- Notoginsenoside R1CAS: 80418-24-2 Formula: C47H80O18 Molecular Weight: 933.14Analytical standard ? Analytical standard — certified-purity material for quantitative calibration. Use to prepare calibration standards and validate analytical methods. Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%(HPLC)● In Stock — US warehouse, ships to EU* Item #: N117964View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- CC(=CCCC(C)(C1CCC2(C1C(CC3C2(CC(C4C3(CCC(C4(C)C)O)C)OC5C(C(C(C(O5)CO)O)O)OC6C(C(C(CO6)O)O)O)C)O)C)OC7C(C(C(C(O7)CO)O)O)O)C
- InChIKey
- LLPWNQMSUYAGQI-OOSPGMBYSA-N
- InChI
- show more
- Synonyms
- (3β,6α,12β)-20-(β-D-Glucopyranosyloxy)-3,12-dihydroxydammar-24-en-6-yl 2-O-β-D-Xylopyranosyl-β-D-glucopyranoside | Sa...
- Amantadine hydrochloride, Matrix protein 2 inhibitorSolid ≥99%(T)● In Stock — US warehouse, ships to EU* Item #: A109736View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- adamantan-1-amine;hydrochloride
- SMILES
- C1C2CC3CC1CC(C2)(C3)N.Cl
- InChIKey
- WOLHOYHSEKDWQH-UHFFFAOYSA-N
- InChI
- 1S/C10H17N.ClH/c11-10-4-7-1-8(5-10)3-9(2-7)6-10;/h7-9H,1-6,11H2;1H
- Synonyms
- AKOS015951188 | AMANTADINE HYDROCHLORIDE [MART.] | s2451 | Tricyclo(3.3.1.13,7)decan-1-amine, hydrochloride | AMANTAD...
- Ambenonium chloride, Acetylcholinesterase inhibitorSolid 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 #: A276230View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2-chlorophenyl)methyl-[2-[[2-[2-[(2-chlorophenyl)methyl-diethylazaniumyl]ethylamino]-2-oxoacetyl]amino]ethyl]-diethylazanium;dichloride
- SMILES
- CC[N+](CC)(CCNC(=O)C(=O)NCC[N+](CC)(CC)CC1=CC=CC=C1Cl)CC2=CC=CC=C2Cl.[Cl-].[Cl-]
- InChIKey
- DXUUXWKFVDVHIK-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- AMBENONIUM CHLORIDE [WHO-DD] | SR-01000597958 | 2,2'-((1,2-Dioxoethane-1,2-diyl)diimino)bis(N-(2-chlorobenzyl)-N,N-di...
- Amlodipine besylateSolid ≥98%● In Stock — US warehouse, ships to EU* Item #: A128786View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- benzenesulfonic acid;3-O-ethyl 5-O-methyl 2-(2-aminoethoxymethyl)-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate
- SMILES
- CCOC(=O)C1=C(NC(=C(C1C2=CC=CC=C2Cl)C(=O)OC)C)COCCN.C1=CC=C(C=C1)S(=O)(=O)O
- InChIKey
- ZPBWCRDSRKPIDG-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- Amlodipine (besylate) | Amlodipine benzenesulfonate | AMLODIPINE BESILATE (MART.) | AMTURNIDE COMPONENT AMLODIPINE BE...
- Amprenavir, Human immunodeficiency virus type 1 protease inhibitor● In Stock — US warehouse, ships to EU* Item #: A124983View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- [(3S)-oxolan-3-yl] N-[(2S,3R)-4-[(4-aminophenyl)sulfonyl-(2-methylpropyl)amino]-3-hydroxy-1-phenylbutan-2-yl]carbamate
- SMILES
- CC(C)CN(CC(C(CC1=CC=CC=C1)NC(=O)OC2CCOC2)O)S(=O)(=O)C3=CC=C(C=C3)N
- InChIKey
- YMARZQAQMVYCKC-OEMFJLHTSA-N
- InChI
- show more
- Synonyms
- 4-Amino-N-((2syn,3S)-2-hydroxy-4-phenyl-3-((S)-tetrahydrofuran-3-yloxycarbonylamino)-butyl)-N-isobuty lbenzene sul...
- Phenyl tris(methyl ethyl ketoxime) silaneLiquid ≥95%◐ .Made to order · 8–12 wks Item #: P303476View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (E)-N-[bis[[(E)-butan-2-ylideneamino]oxy]-phenylsilyl]oxybutan-2-imine
- SMILES
- CCC(=NO[Si](C1=CC=CC=C1)(ON=C(C)CC)ON=C(C)CC)C
- InChIKey
- XKBQRJBETDMEFN-ILRZCOILSA-N
- InChI
- 1S/C18H29N3O3Si/c1-7-15(4)19-22-25(23-20-16(5)8-2,24-21-17(6)9-3)18-13-11-10-12-14-18/h10-14H,7-9H2,1-6H3/b19-15+,20-16+,21-17+
- Synonyms
- Phenyltris(methylethylketoximio)silane | 2-Butanone-O,O',O''-(phenylsilylidyne)trioxime | MFCD01320970 | Phenyltris(m...
- Amthamine dihydrobromide● In Stock — US warehouse, ships to EU* Item #: A274896View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-(2-aminoethyl)-4-methyl-1,3-thiazol-2-amine;dihydrobromide
- SMILES
- CC1=C(SC(=N1)N)CCN.Br.Br
- InChIKey
- XFXNNOPUDSFVJE-UHFFFAOYSA-N
- InChI
- 1S/C6H11N3S.2BrH/c1-4-5(2-3-7)10-6(8)9-4;;/h2-3,7H2,1H3,(H2,8,9);2*1H
- Synonyms
- J-519588 | 5-(2-Aminoethyl)-4-methyl-1,3-thiazol-2-amine--hydrogen bromide (1/2) | FT-0756683 | E98656 | AKOS01590880...
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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.