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
- CAY10500CAS: 869998-49-2 Formula: C32H32F3N3O2 Molecular Weight: 547.6◐ .Made to order · 8–12 wks Item #: C342540View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 6,7-dimethyl-3-[[methyl-[2-[methyl-[[1-[3-(trifluoromethyl)phenyl]indol-3-yl]methyl]amino]ethyl]amino]methyl]chromen-4-one
- SMILES
- CC1=CC2=C(C=C1C)OC=C(C2=O)CN(C)CCN(C)CC3=CN(C4=CC=CC=C43)C5=CC=CC(=C5)C(F)(F)F
- InChIKey
- JZNXLPPJRFFECJ-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- HY-111255 | AKOS040738946 | Q27453438 | SCHEMBL1270919 | CAY10500 | 6,7-dimethyl-3-((methyl-(2-(methyl-(1-(3-trifluor...
- CAY10505CAS: 1218777-13-9 Formula: C14H8FNO3S Molecular Weight: 289.2810mM in DMSO◐ .Made to order · 8–12 wks Item #: C408518View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- (E)-5-((5-(4-fluorophenyl)furan-2-yl)methylene)thiazolidine-2,4-dione
- CAY10526CAS: 938069-71-7 Formula: C12H7BrO3S Molecular Weight: 311.15● In Stock — US warehouse, ships to EU* Item #: C355914View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-(1-benzothiophen-2-yl)-4-bromo-2-hydroxy-2H-furan-5-one
- SMILES
- C1=CC=C2C(=C1)C=C(S2)C3=C(C(=O)OC3O)Br
- InChIKey
- ICCDILPNCJIDAW-UHFFFAOYSA-N
- InChI
- 1S/C12H7BrO3S/c13-10-9(11(14)16-12(10)15)8-5-6-3-1-2-4-7(6)17-8/h1-5,11,14H
- Synonyms
- 3-(1-benzothiophen-2-yl)-4-bromo-2-hydroxy-2H-furan-5-one | 4-(Benzo[b]thiophen-2-yl)-3-bromo-5-hydroxyfuran-2(5H)-on...
- TCS PrP Inhibitor 13CAS: 34320-83-7 Formula: C15H11N3O3 Molecular Weight: 281.27● In Stock — US warehouse, ships to EU* Item #: C275067View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-(4-nitrophenyl)-2-phenyl-4H-pyrazol-3-one
- SMILES
- C1C(=NN(C1=O)C2=CC=CC=C2)C3=CC=C(C=C3)[N+](=O)[O-]
- InChIKey
- FDAVFKZPGQEGDX-UHFFFAOYSA-N
- InChI
- 1S/C15H11N3O3/c19-15-10-14(11-6-8-13(9-7-11)18(20)21)16-17(15)12-4-2-1-3-5-12/h1-9H,10H2
- Synonyms
- MS-23993 | 5-(4-nitrophenyl)-2-phenyl-4H-pyrazol-3-one | ,4-Dihydro-5-(4-nitrophenyl)-2-phenyl-3H-pyrazol-3-one | AKO...
- CAY10575CAS: 916985-21-2 Formula: C22H21N3O6S2 Molecular Weight: 487.54◐ .Made to order · 8–12 wks Item #: C276149View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-(5,6-dimethoxybenzimidazol-1-yl)-3-[(4-methylsulfonylphenyl)methoxy]thiophene-2-carboxamide
- SMILES
- COC1=C(C=C2C(=C1)N=CN2C3=CC(=C(S3)C(=O)N)OCC4=CC=C(C=C4)S(=O)(=O)C)OC
- InChIKey
- YYZTVTZCYVZGRB-UHFFFAOYSA-N
- InChI
- 1S/C22H21N3O6S2/c1-29-17-8-15-16(9-18(17)30-2)25(12-24-15)20-10-19(21(32-20)22(23)26)31-11-13-4-6-14(7-5-13)33(3,27)28/h4-10,12H,11H2,1-3H3,(H2,23,26)
- Synonyms
- CAY 10575 | HMS3229L15 | 5-(5,6-dimethoxy-1H-1,3-benzodiazol-1-yl)-3-[(4-methanesulfonylphenyl)methoxy]thiophene-2-ca...
- CAY10567CAS: 32387-96-5 Formula: C21H14N2O2 Molecular Weight: 326.36Solid 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 warehouse, ships to EU* Item #: C276237View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2,3-diphenylquinoxaline-6-carboxylic acid
- SMILES
- C1=CC=C(C=C1)C2=NC3=C(C=C(C=C3)C(=O)O)N=C2C4=CC=CC=C4
- InChIKey
- LFWGZXMTCUOPFI-UHFFFAOYSA-N
- InChI
- 1S/C21H14N2O2/c24-21(25)16-11-12-17-18(13-16)23-20(15-9-5-2-6-10-15)19(22-17)14-7-3-1-4-8-14/h1-13H,(H,24,25)
- Synonyms
- Q27164286 | BML-257 | NCGC00163391-01 | US11718589, Compound 21b | SCHEMBL6291531 | DivK1c_004466 | Germanium, powder...
- CAY10572CAS: 942425-68-5 Formula: C12H11N3O·HCl Molecular Weight: 249.7● In Stock — US warehouse, ships to EU* Item #: C305017View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-pyridin-4-yl-1,5,6,7-tetrahydropyrrolo[3,2-c]pyridin-4-one;hydrochloride
- SMILES
- C1CNC(=O)C2=C1NC(=C2)C3=CC=NC=C3.Cl
- InChIKey
- IMVNFURYBZMFDZ-UHFFFAOYSA-N
- InChI
- 1S/C12H11N3O.ClH/c16-12-9-7-11(8-1-4-13-5-2-8)15-10(9)3-6-14-12;/h1-2,4-5,7,15H,3,6H2,(H,14,16);1H
- Synonyms
- PHA-767491xhydrochloride | Lupersol DNF | BS-18264 | PHA 767491 hydrochloride | SCHEMBL1424721 | 942425-68-5 (HCl) | ...
- CAY10581CAS: 1018340-07-2 Formula: C22H21NO4 Molecular Weight: 363.41◐ .Made to order · 8–12 wks Item #: C335772View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (3S,4S)-4-(benzylamino)-3-hydroxy-2,2-dimethyl-3,4-dihydrobenzo[g]chromene-5,10-dione
- SMILES
- CC1(C(C(C2=C(O1)C(=O)C3=CC=CC=C3C2=O)NCC4=CC=CC=C4)O)C
- InChIKey
- WKHJQIQDQXGUOD-UWJYYQICSA-N
- InChI
- 1S/C22H21NO4/c1-22(2)21(26)17(23-12-13-8-4-3-5-9-13)16-18(24)14-10-6-7-11-15(14)19(25)20(16)27-22/h3-11,17,21,23,26H,12H2,1-2H3/t17-,21-/m0/s1
- Synonyms
- (3R,4S)-4-(benzylamino)-3-hydroxy-2,2-dimethyl-3,4-dihydrobenzo[g]chromene-5,10-dione | CAY 10581 | CAY-10581
- CAY10594CAS: 1130067-34-3 Formula: C26H28N4O2 Molecular Weight: 428.53Solid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%◐ .Made to order · 8–12 wks Item #: C331610View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[2-(4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-8-yl)ethyl]naphthalene-2-carboxamide
- SMILES
- C1CN(CCC12C(=O)NCN2C3=CC=CC=C3)CCNC(=O)C4=CC5=CC=CC=C5C=C4
- InChIKey
- FAIFAFUXFFWVNQ-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- BCP30751 | SR-01000928454 | BDBM50278167 | SCHEMBL10311310 | AKOS028114472 | N-[2-(4-Oxo-1-phenyl-1,3,8-triazaspiro[4...
- CAY10621 (SKI 5C)CAS: 120005-55-2 Formula: C26H45NO4 Molecular Weight: 435.65◐ .Made to order · 8–12 wks Item #: C276256View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- tert-butyl (4S)-4-hexadec-2-ynoyl-2,2-dimethyl-1,3-oxazolidine-3-carboxylate
- SMILES
- CCCCCCCCCCCCCC#CC(=O)C1COC(N1C(=O)OC(C)(C)C)(C)C
- InChIKey
- YGBSGZPIDCXNEH-QFIPXVFZSA-N
- InChI
- 1S/C26H45NO4/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-20-23(28)22-21-30-26(5,6)27(22)24(29)31-25(2,3)4/h22H,7-18,21H2,1-6H3/t22-/m0/s1
- Synonyms
- tert-Butyl(4S)-4-hexadec-2-ynoyl-2,2-dimethyl-1,3-oxazolidine-3-carboxylate
- CB 1954CAS: 21919-05-1 Formula: C9H8N4O5 Molecular Weight: 252.1810mM in DMSO● In Stock — US warehouse, ships to EU* Item #: C422631View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-(aziridin-1-yl)-2,4-dinitrobenzamide
- SMILES
- C1CN1C2=C(C=C(C(=C2)C(=O)N)[N+](=O)[O-])[N+](=O)[O-]
- InChIKey
- WOCXQMCIOTUMJV-UHFFFAOYSA-N
- InChI
- 1S/C9H8N4O5/c10-9(14)5-3-7(11-1-2-11)8(13(17)18)4-6(5)12(15)16/h3-4H,1-2H2,(H2,10,14)
- Synonyms
- EU-0100200 | HY-13543 | Lopac0_000200 | 2,4-Dinitro-5-ethyleneiminobenzamide | CB1954(Tretazicar) | LP00200 | BDBM500...
- C.I.Reactive Blue 21Industrial grade● In Stock — US warehouse, ships to EU* Item #: C349638View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- show more
- InChIKey
- WXQMFIJLJLLQIS-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- SUMIFIX TURQUOIS BLUE G | Levafix Turquoise Blue E-G | DTXSID10893743 | ReactiveBlue21 | Q27256648 | C.I. Reactive Bl...
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.