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
- Amino-PEG9-amineCAS: 474082-35-4 Formula: C20H44N2O9 Molecular Weight: 456.6● In Stock — US warehouse, ships to EU* Item #: A412715View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[2-[2-[2-[2-[2-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanamine
- SMILES
- C(COCCOCCOCCOCCOCCOCCOCCOCCOCCN)N
- InChIKey
- YWYRXJJAEDMZGY-UHFFFAOYSA-N
- InChI
- 1S/C20H44N2O9/c21-1-3-23-5-7-25-9-11-27-13-15-29-17-19-31-20-18-30-16-14-28-12-10-26-8-6-24-4-2-22/h1-22H2
- Aminophylline, Adenosine receptor antagonist10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: A408079View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Phyllocontin | 3,9-dihydro-1,3-dimethyl-1H-purine-2,6-dione
- Amisulpride-d5CAS: 1216626-17-3 Formula: C17H22D5N3O4S Molecular Weight: 374.51● In Stock — US warehouse, ships to EU* Item #: A337449View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-amino-5-ethylsulfonyl-2-methoxy-N-[[1-(1,1,2,2,2-pentadeuterioethyl)pyrrolidin-2-yl]methyl]benzamide
- SMILES
- CCN1CCCC1CNC(=O)C2=CC(=C(C=C2OC)N)S(=O)(=O)CC
- InChIKey
- NTJOBXMMWNYJFB-SGEUAGPISA-N
- InChI
- 1S/C17H27N3O4S/c1-4-20-8-6-7-12(20)11-19-17(21)13-9-16(25(22,23)5-2)14(18)10-15(13)24-3/h9-10,12H,4-8,11,18H2,1-3H3,(H,19,21)/i1D3,4D2
- Synonyms
- 4-Amino-N-[(1-ethyl-2-pyrrolidinyl)methyl]-5-(ethylsulfonyl)-2-methoxybenzamide-d5
- Amitraz solutionAnalytical standard ? Analytical standard — certified-purity material for quantitative calibration. Use to prepare calibration standards and validate analytical methods. 100ug/ml in methanol● In Stock — US warehouse, ships to EU* Item #: A114818View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N'-(2,4-dimethylphenyl)-N-[(2,4-dimethylphenyl)iminomethyl]-N-methylmethanimidamide
- SMILES
- CC1=CC(=C(C=C1)N=CN(C)C=NC2=C(C=C(C=C2)C)C)C
- InChIKey
- QXAITBQSYVNQDR-UHFFFAOYSA-N
- InChI
- 1S/C19H23N3/c1-14-6-8-18(16(3)10-14)20-12-22(5)13-21-19-9-7-15(2)11-17(19)4/h6-13H,1-5H3
- Synonyms
- BAAM | Bipin | BTS 27419 | AI3-27967 | 1,5-Di-(2,4-dimethylphenyl)-3-methyl-1,3,5-triazapenta-1,4-diene | 2,4-Xylidin...
- Amitriptyline, Antagonist of 5-HT 2A receptor;Antagonist of 5-HT 2C receptor;Antagonist of 5-HT 6 receptor;Antagonist of 5-HT 7 receptor;Antagonist of H 1 receptor;Channel blocker of K ir3.2;Channel blocker of K ir3.4;Antagonist of LPA 1 receptor;Antagonist of M 1 recepMoligand™ ? 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 #: A424342View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N,N-dimethyl-3-(2-tricyclo[9.4.0.03,8]pentadeca-1(15),3,5,7,11,13-hexaenylidene)propan-1-amine
- SMILES
- CN(C)CCC=C1C2=CC=CC=C2CCC3=CC=CC=C31
- InChIKey
- KRMDCWKBEZIMAB-UHFFFAOYSA-N
- InChI
- 1S/C20H23N/c1-21(2)15-7-12-20-18-10-5-3-8-16(18)13-14-17-9-4-6-11-19(17)20/h3-6,8-12H,7,13-15H2,1-2H3
- Synonyms
- amitriptyline|50-48-6|Damitriptyline|Amitriptylin|Triptanol|Flavyl|Seroten|Proheptadiene|Elavil|Lantron|Triptisol|Try...
- Amitriptyline HCl, Norepinephrine transporter inhibitor10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: A408601View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 1-Propanamine, 3-(10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-ylidene)-N,N-dimethyl-, hydrochloride (1:1)
- Amlodipine Maleate, Voltage-gated L-type calcium channel blocker◐ .Made to order · 8–12 wks Item #: A353265View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (Z)-but-2-enedioic 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.C(=CC(=O)O)C(=O)O
- InChIKey
- TZNOWAJJWCGILX-BTJKTKAUSA-N
- InChI
- show more
- Synonyms
- AMLODIPINE MALEATE [MART.] | BCP12616 | Amlodipine maleate [USAN] | Amlodipine Maleate; 2-[(2-Aminoethoxy)methyl]-4-(...
- Amiselimod hydrochloride, Sphingosine 1-phosphate receptor modulator● In Stock — US warehouse, ships to EU* Item #: A412394View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-amino-2-[2-[4-heptoxy-3-(trifluoromethyl)phenyl]ethyl]propane-1,3-diol;hydrochloride
- SMILES
- CCCCCCCOC1=C(C=C(C=C1)CCC(CO)(CO)N)C(F)(F)F.Cl
- InChIKey
- GEDVJGOVRLHFQG-UHFFFAOYSA-N
- InChI
- 1S/C19H30F3NO3.ClH/c1-2-3-4-5-6-11-26-17-8-7-15(12-16(17)19(20,21)22)9-10-18(23,13-24)14-25;/h7-8,12,24-25H,2-6,9-11,13-14,23H2,1H3;1H
- Synonyms
- MT-1303 hydrochlorideMT-1303 hydrochloride | E73478 | SY035738 | BS-17941 | Q27274184 | Amiselimod hydrochloride (USA...
- Amitraz solutionAnalytical standard ? Analytical standard — certified-purity material for quantitative calibration. Use to prepare calibration standards and validate analytical methods. 10ug/ml in methanol● In Stock — US warehouse, ships to EU* Item #: A114820View ProductPricing & Pack Sizes
Technical Identifiers
- Amlodipine, Gating inhibitor of Ca v1.2;Gating inhibitor of Ca v1.3;Allosteric modulator of P2X4Moligand™ ? 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 #: A408387View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- UK-48340 | 2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic...
- Amlodipine Besylate10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: A408203View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic acid-3-eth...
- Amlodipine maleateCAS: 88150-47-4 EC Number: 629-849-0 PubChem CID: 6435922 Formula: C20H25N2O5Cl.C4H4O4 Molecular Weight: 524.9410mM in DMSO● In Stock — US warehouse, ships to EU* Item #: A426657View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (Z)-but-2-enedioic 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.C(=CC(=O)O)C(=O)O
- InChIKey
- TZNOWAJJWCGILX-BTJKTKAUSA-N
- InChI
- show more
- Synonyms
- AMLODIPINE MALEATE [MART.] | BCP12616 | Amlodipine maleate [USAN] | Amlodipine Maleate; 2-[(2-Aminoethoxy)methyl]-4-(...
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.