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
24,635Navigate 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
- Clomethiazole, GABA-A receptor; anion channel positive allosteric modulatorLiquid◐ .Made to order · 8–12 wks Item #: C348069View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-(2-chloroethyl)-4-methyl-1,3-thiazole
- SMILES
- CC1=C(SC=N1)CCCl
- InChIKey
- PCLITLDOTJTVDJ-UHFFFAOYSA-N
- InChI
- 1S/C6H8ClNS/c1-5-6(2-3-7)9-4-8-5/h4H,2-3H2,1H3
- Synonyms
- 5-(2-Chloro-ethyl)-4-methyl-thiazole | 5-(2-CHLOROETHYL)-4-METHYLTHIAZOLE | SY101781 | Q417178 | SMR002529479 | Clome...
- Clomifene citrate10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: C409201View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- NSC 35770 | 2-[4-(2-chloro-1,2-diphenylethenyl)phenoxy]-N,N-diethyl-ethanamine, 2-hydroxy-1,2,3-prop...
- Cl-amidineCAS: 1043444-18-3 Formula: C14H19ClN4O2.C2HF3O2 Molecular Weight: 424.80Liquid 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: C409028View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Benzamide, N-[(1S)-1-(aminocarbonyl)-4-[(2-chloro-1-iminoethyl)amino]butyl]-, 2,2,2-trifluoroacetate...
- Cladospirone bisepoxide◐ .Made to order · 8–12 wks Item #: C275675View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- C1=CC2=C3C(=C1)OC4(C5C(O5)C(C67C4(O6)C(=O)C=CC7O)O)OC3=CC=C2
- InChIKey
- AUWGMDYISSBOED-CCNMWVGKSA-N
- InChI
- show more
- Synonyms
- (1aR,6S,7S,7aR)-6,7-Dihydroxy-7,7a-dihydro-1aH-spiro[2a,6a-epoxynaphtho[2,3-b]oxirene-2,2'-naphtho[1,8-de][1,3]dioxin...
- Cladribine (RWJ 26251), DNA inhibitorMoligand™ ? 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 #: C408380View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Leustatin, 2-CdA, 2-chlorodeoxyadenosine, 2-Chloro-2′-deoxyadenosine, CldAdo, Jk 6251, NSC 105014 | (2R,3S,5R)-5-(6-a...
- Clocortolone Pivalate, Glucocorticoid receptor agonist● In Stock — US warehouse, ships to EU* Item #: C346588View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- CC1CC2C3CC(C4=CC(=O)C=CC4(C3(C(CC2(C1C(=O)COC(=O)C(C)(C)C)C)O)Cl)C)F
- InChIKey
- SXYZQZLHAIHKKY-GSTUPEFVSA-N
- InChI
- show more
- Synonyms
- [2-[(6S,8S,9R,10S,11S,13S,14S,16R,17S)-9-chloro-6-fluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-7,8,11,12,14,15,16,17-oc...
- Clebopride malateCAS: 57645-91-7 Formula: C24H30ClN3O7 Molecular Weight: 507.9810mM in DMSO● In Stock — US warehouse, ships to EU* Item #: C424851View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-amino-N-(1-benzylpiperidin-1-ium-4-yl)-5-chloro-2-methoxybenzamide;2,4-dihydroxy-4-oxobutanoate
- SMILES
- COC1=CC(=C(C=C1C(=O)NC2CC[NH+](CC2)CC3=CC=CC=C3)Cl)N.C(C(C(=O)[O-])O)C(=O)O
- InChIKey
- NYNKCGWJPNZJMI-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- clebopride malate|57645-91-7|Clebopride hydrogen malate|Clebopride malate [JAN]|4-amino-N-(1-benzylpiperidin-1-ium-4-...
- Clebopride malateCAS: 57645-91-7 Formula: C24H30ClN3O7 Molecular Weight: 507.98● In Stock — US warehouse, ships to EU* Item #: C413462View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-amino-N-(1-benzylpiperidin-1-ium-4-yl)-5-chloro-2-methoxybenzamide;2,4-dihydroxy-4-oxobutanoate
- SMILES
- COC1=CC(=C(C=C1C(=O)NC2CC[NH+](CC2)CC3=CC=CC=C3)Cl)N.C(C(C(=O)[O-])O)C(=O)O
- InChIKey
- NYNKCGWJPNZJMI-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- Clebopride malate [JAN] | 4-Amino-5-chloro-2-methoxy-N-(1-benzyl-4-piperidyl)benzamide malate | 4-amino-N-(1-benzylpi...
- Clemastine (HS-592) fumarate, Histamine H1 receptor antagonistCAS: 14976-57-9 EC Number: 239-055-2 PubChem CID: 5281069 Formula: C21H26ClNO·C4H4O4 Molecular Weight: 459.9610mM in DMSO● In Stock — US warehouse, ships to EU* Item #: C408479View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Meclastine fumarate | Pyrrolidine, 2-[2-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]ethyl]-1-methyl-, (2R)-, (2E)-2-buten...
- Clemastine Fumarate, Histamine H1 receptor antagonistCAS: 14976-57-9 EC Number: 239-055-2 PubChem CID: 5281069 Formula: C21H26ClNO·C4H4O4 Molecular Weight: 459.96● In Stock — US warehouse, ships to EU* Item #: C129211View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (E)-but-2-enedioic acid;(2R)-2-[2-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]ethyl]-1-methylpyrrolidine
- SMILES
- CC(C1=CC=CC=C1)(C2=CC=C(C=C2)Cl)OCCC3CCCN3C.C(=CC(=O)O)C(=O)O
- InChIKey
- PMGQWSIVQFOFOQ-YKVZVUFRSA-N
- InChI
- show more
- Synonyms
- (R-(R*,R*))-2-(2-(1-(p-Chlorophenyl)-1-phenylethoxy)ethyl)-1-methylpyrrolidinium hydrogen fumarate | NCGC00180903-01 ...
- Clemizole, Channel blocker of TRPC3;Channel blocker of TRPC4;Channel blocker of TRPC5;Channel blocker of TRPC6Moligand™ ? 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 #: C423994View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-[(4-chlorophenyl)methyl]-2-(pyrrolidin-1-ylmethyl)benzimidazole
- SMILES
- C1CCN(C1)CC2=NC3=CC=CC=C3N2CC4=CC=C(C=C4)Cl
- InChIKey
- CJXAEXPPLWQRFR-UHFFFAOYSA-N
- InChI
- 1S/C19H20ClN3/c20-16-9-7-15(8-10-16)13-23-18-6-2-1-5-17(18)21-19(23)14-22-11-3-4-12-22/h1-2,5-10H,3-4,11-14H2
- Synonyms
- SR-01000000057-6 | BSPBio_000273 | CCG-106577 | Histakool | NCGC00015243-01 | NCGC00015243-07 | Oprea1_226569 | CLEMI...
- Cl-amidine TFACAS: 1043444-18-3 Formula: C14H19ClN4O2.C2HF3O2 Molecular Weight: 424.80Solid ≥97%● In Stock — US warehouse, ships to EU* Item #: C413918View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[(2S)-1-amino-5-[(1-amino-2-chloroethylidene)amino]-1-oxopentan-2-yl]benzamide;2,2,2-trifluoroacetic acid
- SMILES
- C1=CC=C(C=C1)C(=O)NC(CCCN=C(CCl)N)C(=O)N.C(=O)(C(F)(F)F)O
- InChIKey
- WUSNMVYWOLUWDD-MERQFXBCSA-N
- InChI
- show more
- Synonyms
- (2S)-5-(2-Chloroethanimidamido)-2-(phenylformamido)pentanamide trifluoroacetic acid salt
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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.