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
24,635Navigate 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
- Nickel(II) phosphate hydrateCAS: 27176-17-6 Formula: Ni₃(PO₄)₂·xH₂O Molecular Weight: 366.01(anhy)● In Stock — US warehouse, ships to EU* Item #: N350430View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- nickel(2+);diphosphate;hydrate
- SMILES
- O.[O-]P(=O)([O-])[O-].[O-]P(=O)([O-])[O-].[Ni+2].[Ni+2].[Ni+2]
- InChIKey
- PZLMPZGLQBNCKC-UHFFFAOYSA-H
- InChI
- 1S/3Ni.2H3O4P.H2O/c;;;2*1-5(2,3)4;/h;;;2*(H3,1,2,3,4);1H2/q3*+2;;;/p-6
- Synonyms
- Nickel(II) phosphate xhydrate | DTXSID80747921 | MFCD09953639 | Nickel(II) phosphate hydrate | AKOS025295036 | Nickel...
- Nevirapine (NSC 641530), Human immunodeficiency virus type 1 reverse transcriptase inhibitor10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: N408013View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 11-cyclopropyl-5,11-dihydro-4-methyl-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-one
- Nicorandil, Activator of K ir6.1;Activator of K ir6.2Moligand™ ? 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 #: N409200View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- SG-75 | N-[2-(nitrooxy)ethyl]-3-pyridinecarboxamide
- Nicotinamide Riboside Chloride (NIAGEN)10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: N408772View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Pyridinium, 3-(aminocarbonyl)-1-β-D-ribofuranosyl-, chloride (1:1)
- Nicotinic Acid, Agonist of HCA 2 receptorMoligand™ ? 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 #: N407808View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 3-pyridinecarboxylic acid | Niacin | Vitamin B3
- NicotellineCAS: 494-04-2 Formula: C15H11N3 Molecular Weight: 233.27● In Stock — US warehouse, ships to EU* Item #: N356523View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2,4-dipyridin-3-ylpyridine
- SMILES
- C1=CC(=CN=C1)C2=CC(=NC=C2)C3=CN=CC=C3
- InChIKey
- OILSPHJMIPYURT-UHFFFAOYSA-N
- InChI
- 1S/C15H11N3/c1-3-13(10-16-6-1)12-5-8-18-15(9-12)14-4-2-7-17-11-14/h1-11H
- Synonyms
- HY-135560 | 2,4-Di(pyridin-3-yl)pyridine | US8609708, 95 Nicotelline | Nicotellin | AKOS030239875 | [3,2':4',3'']-Ter...
- Nicotinamide (NSC 13128)10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: N407906View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Niacinamide, Vitamin PP, Nicotinic acid amide, Vitamin B3, NSC 27452 | 3-Pyridinecarboxamide
- Nicotinamide hydroiodideCAS: 3726-23-6 Formula: C6H7IN2O Molecular Weight: 250.04Solid ≥97%● In Stock — US warehouse, ships to EU* Item #: N350788View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- pyridine-3-carboxamide;hydroiodide
- SMILES
- C1=CC(=CN=C1)C(=O)N.I
- InChIKey
- ITWGXEQHZZFQES-UHFFFAOYSA-N
- InChI
- 1S/C6H6N2O.HI/c7-6(9)5-2-1-3-8-4-5;/h1-4H,(H2,7,9);1H
- Synonyms
- pyridine-3-carboxamide hydroiodide | 3-Pyridinecarboxamide, monohydriodide | 6UNY448CMZ | NICOTINAMIDE HYDRIODIDE | Q...
- Nifenalol hydrochlorideCAS: 5704-60-9 Formula: C11H17ClN2O3 Molecular Weight: 260.72● In Stock — US warehouse, ships to EU* Item #: N412991View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-(4-nitrophenyl)-2-(propan-2-ylamino)ethanol;hydrochloride
- SMILES
- CC(C)NCC(C1=CC=C(C=C1)[N+](=O)[O-])O.Cl
- InChIKey
- STGOXRVTUNXXLQ-UHFFFAOYSA-N
- InChI
- 1S/C11H16N2O3.ClH/c1-8(2)12-7-11(14)9-3-5-10(6-4-9)13(15)16;/h3-6,8,11-12,14H,7H2,1-2H3;1H
- Synonyms
- 1-(4-NITROPHENYL)-1-HYDROXY-2-ISOPROPYLAMINOETHANE HCL | 1-(4-Nitrophenyl)-2-[(propan-2-yl)amino]ethan-1-ol--hydrogen...
- NifenazoneCAS: 2139-47-1 Formula: C17H16N4O2 Molecular Weight: 308.3310mM in DMSO◐ .Made to order · 8–12 wks Item #: N422585View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)pyridine-3-carboxamide
- SMILES
- CC1=C(C(=O)N(N1C)C2=CC=CC=C2)NC(=O)C3=CN=CC=C3
- InChIKey
- BRZANEXCSZCZCI-UHFFFAOYSA-N
- InChI
- 1S/C17H16N4O2/c1-12-15(19-16(22)13-7-6-10-18-11-13)17(23)21(20(12)2)14-8-4-3-5-9-14/h3-11H,1-2H3,(H,19,22)
- Synonyms
- NCGC00016605-03 | NCGC00016605-08 | Niapyrin | NCGC00095026-02 | Nicotinic acid, amidophenyldimethylpyrazolone | SCHE...
- Niflumic acid, Channel blocker of CaCC;Channel blocker of ClC-1;Activator of ClC-Ka;Channel blocker of ClC-Ka;Activator of ClC-Kb;Activator of K Na1.2;Activator of K v7.1;Activator of TRPA1;Channel blocker of TRPC4Moligand™ ? 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 #: N409062View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 2-(3-(trifluoromethyl)phenylamino)nicotinic acid
- Nifursol-¹⁵N2,d2CAS: 1246833-64-6 Formula: C12H5D2N3¹⁵N2O9 Molecular Weight: 369.21Solid ≥95 atom% 15N,≥95%◐ .Made to order · 8–12 wks Item #: N349044View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[(E)-(3,4-dideuterio-5-nitrofuran-2-yl)methylideneamino]-2-hydroxy-3,5-dinitro(15N)benzamide
- SMILES
- C1=C(OC(=C1)[N+](=O)[O-])C=NNC(=O)C2=C(C(=CC(=C2)[N+](=O)[O-])[N+](=O)[O-])O
- InChIKey
- XXUXXCZCUGIGPP-QGMBFAGFSA-N
- InChI
- 1S/C12H7N5O9/c18-11-8(3-6(15(20)21)4-9(11)16(22)23)12(19)14-13-5-7-1-2-10(26-7)17(24)25/h1-5,18H,(H,14,19)/b13-5+/i1D,2D,13+1,14+1
- Synonyms
- Nifursol-15N2,d2 | 2-Hydroxy-3,5-dinitro-N'-{(E)-[5-nitro(~2~H_2_)furan-2-yl]methylidene}(~15~N_2_)benzohydrazide | 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.