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
24,642Navigate 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
102,635Explore 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)
19,700Find 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)
8,782Shop 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
- A-3 hydrochlorideSolid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥97%◐ .Made to order · 8–12 wks Item #: A276438View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-(2-aminoethyl)-5-chloronaphthalene-1-sulfonamide;hydrochloride
- SMILES
- C1=CC2=C(C=CC=C2Cl)C(=C1)S(=O)(=O)NCCN.Cl
- InChIKey
- VWAGIWCLJAQLAL-UHFFFAOYSA-N
- InChI
- 1S/C12H13ClN2O2S.ClH/c13-11-5-1-4-10-9(11)3-2-6-12(10)18(16,17)15-8-7-14;/h1-6,15H,7-8,14H2;1H
- Synonyms
- Tox21_501027 | FT-0645250 | NCGC00094317-01 | N-(2-Aminoethyl)-5-chloronaphthalene-1-sulfonamide hydrochloride | LP01...
- AutophinibCAS: 1644443-47-9 Formula: C14H11ClN6O3 Molecular Weight: 346.73Solid ≥98%(HPLC)● In Stock — US warehouse, ships to EU* Item #: A286631View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 6-chloro-N-(5-methyl-1H-pyrazol-3-yl)-2-(4-nitrophenoxy)pyrimidin-4-amine
- SMILES
- CC1=CC(=NN1)NC2=CC(=NC(=N2)OC3=CC=C(C=C3)[N+](=O)[O-])Cl
- InChIKey
- CEUMAXLRGBKFQP-UHFFFAOYSA-N
- InChI
- 1S/C14H11ClN6O3/c1-8-6-13(20-19-8)17-12-7-11(15)16-14(18-12)24-10-4-2-9(3-5-10)21(22)23/h2-7H,1H3,(H2,16,17,18,19,20)
- Synonyms
- 6-chloro-N-(5-methyl-1H-pyrazol-3-yl)-2-(4-nitrophenoxy)pyrimidin-4-amine | 6-Chloro-N-(5-methyl-1H-pyrazol-3-yl)-2-(...
- Croton OilLiquid● In Stock — US warehouse, ships to EU* Item #: C304665View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Croton resin | Oleum tiglii
- DL-Lysine monohydrateCAS: 885701-25-7 Formula: C6H16N2O3 Molecular Weight: 164.20● In Stock — US warehouse, ships to EU* Item #: D352421View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2,6-diaminohexanoic acid;hydrate
- SMILES
- C(CCN)CC(C(=O)O)N.O
- InChIKey
- HZRUTVAFDWTKGD-UHFFFAOYSA-N
- InChI
- 1S/C6H14N2O2.H2O/c7-4-2-1-3-5(8)6(9)10;/h5H,1-4,7-8H2,(H,9,10);1H2
- Synonyms
- SCHEMBL1219468 | A854952 | DTXSID10370387 | MFCD00151036 | (+/-)-2,6-Diaminohexanoic acid monohydrate | PARAMETHADION...
- DL-Mandelic acid● In Stock — US warehouse, ships to EU* Item #: D304135View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-hydroxy-2-phenylacetic acid
- SMILES
- C1=CC=C(C=C1)C(C(=O)O)O
- InChIKey
- IWYDHOAUDWTVEP-UHFFFAOYSA-N
- InChI
- 1S/C8H8O3/c9-7(8(10)11)6-4-2-1-3-5-6/h1-5,7,9H,(H,10,11)
- Synonyms
- s3363 | (+/-)-alpha-Hydroxybenzeneacetic acid | alpha-Hydroxybenzeneacetic acid | (.+/-.)-Mandelic acid | CHEBI:35825...
- DL-AP4 sodium salt◐ .Made to order · 8–12 wks Item #: D275575View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- sodium;[(3R)-3-amino-3-carboxypropyl]-hydroxyphosphinate
- SMILES
- C(CP(=O)(O)[O-])C(C(=O)O)N.[Na+]
- InChIKey
- IGWPQOULJIILQQ-AENDTGMFSA-M
- InChI
- 1S/C4H10NO5P.Na/c5-3(4(6)7)1-2-11(8,9)10;/h3H,1-2,5H2,(H,6,7)(H2,8,9,10);/q;+1/p-1/t3-;/m1./s1
- Synonyms
- DL-2-Amino-4-phosphonobutyricacidsodiumsalt
- Tetrasodium iminodisuccinateCAS: 144538-83-0 EC Number: 604-420-0 PubChem CID: 9927753 Formula: C8H7NNa4O8 Molecular Weight: 337.10Solid AR ? Analytical Reagent grade — high-purity chemicals meeting strict assay limits for lab analysis. Use when accuracy matters and trace impurities could skew results.● In Stock — Germany Item #: T302889View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- tetrasodium;2-(1,2-dicarboxylatoethylamino)butanedioate
- SMILES
- C(C(C(=O)[O-])NC(CC(=O)[O-])C(=O)[O-])C(=O)[O-].[Na+].[Na+].[Na+].[Na+]
- InChIKey
- GYBINGQBXROMRS-UHFFFAOYSA-J
- InChI
- 1S/C8H11NO8.4Na/c10-5(11)1-3(7(14)15)9-4(8(16)17)2-6(12)13;;;;/h3-4,9H,1-2H2,(H,10,11)(H,12,13)(H,14,15)(H,16,17);;;;/q;4*+1/p-4
- Synonyms
- Aspartic acid, N-(1,2-dicarboxyethyl)-, sodium salt (1:4) | UNII-GYS41J2635 | TETRASODIUM IMINIDISUCCINATE | GYS41J26...
- A922500CAS: 959122-11-3 Formula: C26H24N2O4 Molecular Weight: 428.48● In Stock — US warehouse, ships to EU* Item #: A129800View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (1R,2R)-2-[4-[4-(phenylcarbamoylamino)phenyl]benzoyl]cyclopentane-1-carboxylic acid
- SMILES
- C1CC(C(C1)C(=O)O)C(=O)C2=CC=C(C=C2)C3=CC=C(C=C3)NC(=O)NC4=CC=CC=C4
- InChIKey
- BOZRFEQDOFSZBV-DHIUTWEWSA-N
- InChI
- show more
- Synonyms
- DGAT-1 Inhibitor 4a | (1R,2R)-2-(4'-(3-Phenylureido)-[1,1'-biphenyl]-4-carbonyl)cyclopentanecarboxylic acid | SCHEMBL...
- AA 147CAS: 393121-74-9 Formula: C16H17NO2 Molecular Weight: 255.31● In Stock — US warehouse, ships to EU* Item #: A288526View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-(2-hydroxy-5-methylphenyl)-3-phenylpropanamide
- SMILES
- CC1=CC(=C(C=C1)O)NC(=O)CCC2=CC=CC=C2
- InChIKey
- AWHLTHOHBAGPMY-UHFFFAOYSA-N
- InChI
- 1S/C16H17NO2/c1-12-7-9-15(18)14(11-12)17-16(19)10-8-13-5-3-2-4-6-13/h2-7,9,11,18H,8,10H2,1H3,(H,17,19)
- Synonyms
- N-(2-Hydroxy-5-methylphenyl)benzenepropanamide
- AAL 993CAS: 269390-77-4 Formula: C20H16N3OF3 Molecular Weight: 371.4● In Stock — US warehouse, ships to EU* Item #: A275890View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(pyridin-4-ylmethylamino)-N-[3-(trifluoromethyl)phenyl]benzamide
- SMILES
- C1=CC=C(C(=C1)C(=O)NC2=CC=CC(=C2)C(F)(F)F)NCC3=CC=NC=C3
- InChIKey
- BLAFVGLBBOPRLP-UHFFFAOYSA-N
- InChI
- 1S/C20H16F3N3O/c21-20(22,23)15-4-3-5-16(12-15)26-19(27)17-6-1-2-7-18(17)25-13-14-8-10-24-11-9-14/h1-12,25H,13H2,(H,26,27)
- Synonyms
- 2-[(4-Pyridinylmethyl)amino]-N-[3-(trifluoromethyl)phenyl]benzamide
- DL-Tyrosine ethyl ester hydrochlorideCAS: 5619-08-9 Formula: C11H15NO3·HCl Molecular Weight: 245.7● In Stock — US warehouse, ships to EU* Item #: D331121View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- ethyl 2-amino-3-(4-hydroxyphenyl)propanoate;hydrochloride
- SMILES
- CCOC(=O)C(CC1=CC=C(C=C1)O)N.Cl
- InChIKey
- BQULAXAVRFIAHN-UHFFFAOYSA-N
- InChI
- 1S/C11H15NO3.ClH/c1-2-15-11(14)10(12)7-8-3-5-9(13)6-4-8;/h3-6,10,13H,2,7,12H2,1H3;1H
- Synonyms
- SR-01000196102-1 | A825334 | DIMETHYL3-METHYL-TRANS-1,2-CYCLOPROPANEDICARBOXYLATE | LS-13980 | FT-0659909 | MFCD00063...
- DL-Menthyl borateCAS: 62697-74-9 Formula: C30H57BO3 Molecular Weight: 476.58● In Stock — US warehouse, ships to EU* Item #: D351610View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- tris(5-methyl-2-propan-2-ylcyclohexyl) borate
- SMILES
- B(OC1CC(CCC1C(C)C)C)(OC2CC(CCC2C(C)C)C)OC3CC(CCC3C(C)C)C
- InChIKey
- APDCUDTVQNGARJ-UHFFFAOYSA-N
- InChI
- 1S/C30H57BO3/c1-19(2)25-13-10-22(7)16-28(25)32-31(33-29-17-23(8)11-14-26(29)20(3)4)34-30-18-24(9)12-15-27(30)21(5)6/h19-30H,10-18H2,1-9H3
- Synonyms
- SCHEMBL10585538 | Tris[5-methyl-2-(propan-2-yl)cyclohexyl] borate | tris(5-methyl-2-propan-2-ylcyclohexyl) borate | 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.