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
24,653Navigate 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
2,814PROTAC 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
102,664Explore 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)
8,793Shop 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
- J 113863◐ .Made to order · 8–12 wks Item #: J287113View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2,7-dichloro-N-[1-[[(1E)-cycloocten-1-yl]methyl]-1-ethylpiperidin-1-ium-4-yl]-9H-xanthene-9-carboxamide;iodide
- SMILES
- CC[N+]1(CCC(CC1)NC(=O)C2C3=C(C=CC(=C3)Cl)OC4=C2C=C(C=C4)Cl)CC5=CCCCCCC5.[I-]
- InChIKey
- FOAFBMYSXIGAOX-LQGGPMKRSA-N
- InChI
- show more
- Synonyms
- MFCD00000048 | F81765 | UCB 35625 | 1,4-cis-1-(1-Cycloocten-1-ylmethyl)-4-[[(2,7-dichloro-9H-xanthen-9-yl)carbonyl]am...
- Itopride HydrochlorideSolid ≥98%(HPLC)● In Stock — US Item #: I132366View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[[4-[2-(dimethylamino)ethoxy]phenyl]methyl]-3,4-dimethoxybenzamide;hydrochloride
- SMILES
- CN(C)CCOC1=CC=C(C=C1)CNC(=O)C2=CC(=C(C=C2)OC)OC.Cl
- InChIKey
- ZTOUXLLIPWWHSR-UHFFFAOYSA-N
- InChI
- 1S/C20H26N2O4.ClH/c1-22(2)11-12-26-17-8-5-15(6-9-17)14-21-20(23)16-7-10-18(24-3)19(13-16)25-4;/h5-10,13H,11-12,14H2,1-4H3,(H,21,23);1H
- Synonyms
- Benzamide, N-[[4-[2-(dimethylamino)ethoxy]phenyl]methyl]-3,4-dimethoxy-, hydrochloride (1:1) | AC-32564 | CCG-101047 ...
- 6-Fluoro-DL-tryptophan, Inhibitor of L-Tryptophan hydroxylase 1;Inhibitor of L-Tryptophan hydroxylase 2Solid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%● In Stock — US Item #: F343329View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-amino-3-(6-fluoro-1H-indol-3-yl)propanoic acid
- SMILES
- C1=CC2=C(C=C1F)NC=C2CC(C(=O)O)N
- InChIKey
- YMEXGEAJNZRQEH-UHFFFAOYSA-N
- InChI
- 1S/C11H11FN2O2/c12-7-1-2-8-6(3-9(13)11(15)16)5-14-10(8)4-7/h1-2,4-5,9,14H,3,13H2,(H,15,16)
- Synonyms
- (+/-)-6-FLUOROTRYPTOPHAN | dl-6-Fluorotryptophan | F-6880 | YMEXGEAJNZRQEH-UHFFFAOYSA-N | CHEBI:182183 | NSC9364 | NS...
- U-51605◐ .Made to order · 8–12 wks Item #: U275402View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (Z)-7-[(1R,4S,5R)-1-[(E)-oct-6-enyl]-2,3-diazabicyclo[2.2.1]hept-2-en-5-yl]hept-5-enoic acid
- SMILES
- CC=CCCCCCC12CC(C(C1)N=N2)CC=CCCCC(=O)O
- InChIKey
- PEZZZRQWIOKEBE-PHKBLYBCSA-N
- InChI
- show more
- Synonyms
- 9,11-Azoprosta-5,13-dienoic acid | (Z)-7-[(1R,4S,5R)-1-[(E)-Oct-6-enyl]-2,3-diazabicyclo[2.2.1]hept-2-en-5-yl]hept-5-...
- JNJ 5207852 dihydrochloride● In Stock — US Item #: J287911View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-[3-[4-(piperidin-1-ylmethyl)phenoxy]propyl]piperidine;dihydrochloride
- SMILES
- C1CCN(CC1)CCCOC2=CC=C(C=C2)CN3CCCCC3.Cl.Cl
- InChIKey
- RLLXSVVZCGBIJR-UHFFFAOYSA-N
- InChI
- 1S/C20H32N2O.2ClH/c1-3-12-21(13-4-1)16-7-17-23-20-10-8-19(9-11-20)18-22-14-5-2-6-15-22;;/h8-11H,1-7,12-18H2;2*1H
- Synonyms
- 1-[3-[4-(1-Piperidinylmethyl)phenoxy]propyl]piperidine hydrochloride
- JK184CAS: 315703-52-7 Formula: C19H18N4OS Molecular Weight: 350.44● In Stock — US Item #: J169510View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-(4-ethoxyphenyl)-4-(2-methylimidazo[1,2-a]pyridin-3-yl)-1,3-thiazol-2-amine
- SMILES
- CCOC1=CC=C(C=C1)NC2=NC(=CS2)C3=C(N=C4N3C=CC=C4)C
- InChIKey
- ROYXIPOUVGDTAO-UHFFFAOYSA-N
- InChI
- 1S/C19H18N4OS/c1-3-24-15-9-7-14(8-10-15)21-19-22-16(12-25-19)18-13(2)20-17-6-4-5-11-23(17)18/h4-12H,3H2,1-2H3,(H,21,22)
- Synonyms
- AKOS016003923 | DTXSID70360042 | B2693-462944 | BDBM50249523 | N-(4-ETHOXYPHENYL)-4-{2-METHYLIMIDAZO[1,2-A]PYRIDIN-3-...
- Tyrene CR4, Tyrosine-protein kinase JAK2 inhibitor◐ .Made to order · 8–12 wks Item #: T335809View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- C1=CC=C(C=C1)CNC(=O)C(=CC=CC2=CC(=C(C=C2)O)O)C#N
- Synonyms
- UNII-T669M1395I | 1110670-40-0 | J-002517 | N-benzyl-2-cyano-5-(3,4-dihydroxyphenyl)penta-2,4-dienamide | Q27289723 |...
- Chlorprothixene hydrochloride● In Stock — US Item #: C171261View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (3Z)-3-(2-chlorothioxanthen-9-ylidene)-N,N-dimethylpropan-1-amine;hydrochloride
- SMILES
- CN(C)CCC=C1C2=CC=CC=C2SC3=C1C=C(C=C3)Cl.Cl
- InChIKey
- YWKRLOSRDGPEJR-KIUKIJHYSA-N
- InChI
- 1S/C18H18ClNS.ClH/c1-20(2)11-5-7-14-15-6-3-4-8-17(15)21-18-10-9-13(19)12-16(14)18;/h3-4,6-10,12H,5,11H2,1-2H3;1H/b14-7-;
- Synonyms
- CHLORPROTHIXENE HYDROCHLORIDE [JAN] | D02162 | DTXSID701017267 | AKOS024374911 | (E)-2-Chloro-9-(3-dimethylaminopropy...
- JNJ-10198409CAS: 627512-69-0 Formula: C18H16FN3O2 Molecular Weight: 325.34◐ .Made to order · 8–12 wks Item #: J276446View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-(3-fluorophenyl)-6,7-dimethoxy-1,4-dihydroindeno[1,2-c]pyrazol-3-amine
- SMILES
- COC1=C(C=C2C(=C1)CC3=C2NN=C3NC4=CC(=CC=C4)F)OC
- InChIKey
- ZDNURMVOKAERHZ-UHFFFAOYSA-N
- InChI
- 1S/C18H16FN3O2/c1-23-15-7-10-6-14-17(13(10)9-16(15)24-2)21-22-18(14)20-12-5-3-4-11(19)8-12/h3-5,7-9H,6H2,1-2H3,(H2,20,21,22)
- Synonyms
- JNJ 10198409 | HMS3650O03 | DTXSID70430890 | CAB51840 | HMS3229I11 | HMS3674K21 | BDBM50179207 | SR-01000946814-1 | N...
- Chromium nitride● In Stock — US Item #: C302616View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- azane;chromium
- SMILES
- N.[Cr]
- InChIKey
- SJKRCWUQJZIWQB-UHFFFAOYSA-N
- InChI
- 1S/Cr.H3N/h;1H3
- Synonyms
- Chromium nitride (mixture of Cr2N and CrN), 325 mesh powder | MFCD00016048 | azane;chromium
- Tyrphostin AG 1296Solid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%● In Stock — US Item #: T129775View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 6,7-dimethoxy-2-phenylquinoxaline
- SMILES
- COC1=C(C=C2C(=C1)N=CC(=N2)C3=CC=CC=C3)OC
- InChIKey
- QNOXYUNHIGOWNY-UHFFFAOYSA-N
- InChI
- 1S/C16H14N2O2/c1-19-15-8-12-13(9-16(15)20-2)18-14(10-17-12)11-6-4-3-5-7-11/h3-10H,1-2H3
- Synonyms
- AG 1296 | AS-62520 | MFCD00270913 | NCGC00163386-01 | Tyrphostin AG 1296 | IDI1_033892 | KBio2_000142 | ag1296 | AG-1...
- Amezinium Methyl Sulfate● In Stock — US Item #: A151192View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 6-methoxy-1-phenylpyridazin-1-ium-4-amine;methyl sulfate
- SMILES
- COC1=[N+](N=CC(=C1)N)C2=CC=CC=C2.COS(=O)(=O)[O-]
- InChIKey
- ZEASXVYVFFXULL-UHFFFAOYSA-N
- InChI
- 1S/C11H11N3O.CH4O4S/c1-15-11-7-9(12)8-13-14(11)10-5-3-2-4-6-10;1-5-6(2,3)4/h2-8,12H,1H3;1H3,(H,2,3,4)
- Synonyms
- Regulton | Amezinium methyl sulfate | DS-14012 | Metroc | Amezinin | 4-amino-6-methoxy-1-phenylpyridaziniummethylsulf...
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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.