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 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 to assemble or screen PROTAC designs, with clear identifiers for efficient selection.
By Signaling Pathways
102,620Explore 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)
19,695Find 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
- α-Chloro-4′-fluoropropiophenoneCAS: 81112-09-6 Formula: C9H8ClFO Molecular Weight: 186.61● In Stock — US Item #: C354254View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-chloro-1-(4-fluorophenyl)propan-1-one
- SMILES
- CC(C(=O)C1=CC=C(C=C1)F)Cl
- InChIKey
- AGQLOTJUTCKLOE-UHFFFAOYSA-N
- InChI
- 1S/C9H8ClFO/c1-6(10)9(12)7-2-4-8(11)5-3-7/h2-6H,1H3
- Synonyms
- FT-0611774 | 2-Chloro-1-(4-fluorophenyl)-1-propanone | DTXSID601001784 | SCHEMBL5151026 | Z56968508 | 1-Propanone, 2-...
- Hydroxydehydro Nifedipine CarboxylateCAS: 34783-31-8 Formula: C16H14N2O7 Molecular Weight: 346.29● In Stock — US Item #: H349470View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(hydroxymethyl)-5-methoxycarbonyl-6-methyl-4-(2-nitrophenyl)pyridine-3-carboxylic acid
- SMILES
- CC1=C(C(=C(C(=N1)CO)C(=O)O)C2=CC=CC=C2[N+](=O)[O-])C(=O)OC
- InChIKey
- ARDQNVJJIRIJPD-UHFFFAOYSA-N
- InChI
- 1S/C16H14N2O7/c1-8-12(16(22)25-2)13(14(15(20)21)10(7-19)17-8)9-5-3-4-6-11(9)18(23)24/h3-6,19H,7H2,1-2H3,(H,20,21)
- Synonyms
- AKOS040754710 | Hydroxydehydro Nifedipine Carboxylate | 2-(hydroxymethyl)-5-methoxycarbonyl-6-methyl-4-(2-nitrophenyl...
- 10Z-HymenialdisineCAS: 82005-12-7 Formula: C11H10BrN5O2 Molecular Weight: 324.13◐ .Made to order · 8–12 wks Item #: H276469View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (4Z)-4-(2-amino-5-oxo-1H-imidazol-4-ylidene)-2-bromo-1,5,6,7-tetrahydropyrrolo[2,3-c]azepin-8-one
- SMILES
- C1CNC(=O)C2=C(C1=C3C(=O)NC(=N3)N)C=C(N2)Br
- InChIKey
- ATBAETXFFCOZOY-DAXSKMNVSA-N
- InChI
- 1S/C11H10BrN5O2/c12-6-3-5-4(7-10(19)17-11(13)16-7)1-2-14-9(18)8(5)15-6/h3,15H,1-2H2,(H,14,18)(H3,13,16,17,19)/b7-4-
- Synonyms
- HB1264 | 5WMS4GA67M | 10Z-Hymenialdisine; 4-(2-Amino-4-oxo-2-imidazolidin-5-ylidene)-2-bromo-4,5,6,7-tetrahydropyrrol...
- Hydroxy Tyrosol 4-Sulfate Sodium SaltCAS: 1817821-22-9 Formula: C8H9NaO6S Molecular Weight: 256.21◐ .Made to order · 8–12 wks Item #: H352299View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 4-(2-Hydroxyethyl)-1,2-benzenediol 1-(Hydrogen Sulfate)
- Hydroxyphenyl propamidobenzoic acid● In Stock — US Item #: H304430View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[3-(4-hydroxyphenyl)propanoylamino]benzoic acid
- SMILES
- C1=CC=C(C(=C1)C(=O)O)NC(=O)CCC2=CC=C(C=C2)O
- InChIKey
- DLFOKZQWYFNKCL-UHFFFAOYSA-N
- InChI
- 1S/C16H15NO4/c18-12-8-5-11(6-9-12)7-10-15(19)17-14-4-2-1-3-13(14)16(20)21/h1-6,8-9,18H,7,10H2,(H,17,19)(H,20,21)
- Synonyms
- 697235-49-7|Hydroxyphenyl propamidobenzoic acid|Dihydroavenanthramide D|Benzoic acid, 2-[[3-(4-hydroxyphenyl)-1-oxopr...
- (+/-)-trans-U-50488 methanesulfonate saltSolid◐ .Made to order · 8–12 wks Item #: T333270View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(3,4-dichlorophenyl)-N-methyl-N-[(1R,2R)-2-pyrrolidin-1-ylcyclohexyl]acetamide;methanesulfonic acid
- SMILES
- CN(C1CCCCC1N2CCCC2)C(=O)CC3=CC(=C(C=C3)Cl)Cl.CS(=O)(=O)O
- InChIKey
- OJPHNZCUXUUVKU-JAXOOIEVSA-N
- InChI
- show more
- Synonyms
- SCHEMBL548872 | Opera_ID_588 | NCG-C00093883-01 | MLS000069740 | DTXSID301004058 | NCGC00016144-01 | SMR000058892 | M...
- ADWX-1◐ .Made to order · 8–12 wks Item #: A276418View ProductPricing & Pack Sizes
Technical Identifiers
- 2-(3-Ethenylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolaneCAS: 627525-99-9 Formula: C14H19BO2 Molecular Weight: 230.12● In Stock — US Item #: E304198View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(3-ethenylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
- SMILES
- B1(OC(C(O1)(C)C)(C)C)C2=CC(=CC=C2)C=C
- InChIKey
- BXAMYNCWLIRUPU-UHFFFAOYSA-N
- InChI
- 1S/C14H19BO2/c1-6-11-8-7-9-12(10-11)15-16-13(2,3)14(4,5)17-15/h6-10H,1H2,2-5H3
- iCRT-14CAS: 677331-12-3 Formula: C21H17N3O2S Molecular Weight: 375.44● In Stock — US Item #: I136824View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (5Z)-5-[(2,5-dimethyl-1-pyridin-3-ylpyrrol-3-yl)methylidene]-3-phenyl-1,3-thiazolidine-2,4-dione
- SMILES
- CC1=CC(=C(N1C2=CN=CC=C2)C)C=C3C(=O)N(C(=O)S3)C4=CC=CC=C4
- InChIKey
- NCSHZXNGQYSKLR-UNOMPAQXSA-N
- InChI
- 1S/C21H17N3O2S/c1-14-11-16(15(2)23(14)18-9-6-10-22-13-18)12-19-20(25)24(21(26)27-19)17-7-4-3-5-8-17/h3-13H,1-2H3/b19-12-
- Synonyms
- 5-((2,5-Dimethyl-1-(pyridin-3-yl)-1H-pyrrol-3-yl)methylene)-3-phenylthiazolidine-2,4-dione | HY-16665 | (5Z)-5-{[2,5-...
- 17-DMAG (Alvespimycin) HCl● In Stock — US Item #: D129714View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- CC1CC(C(C(C=C(C(C(C=CC=C(C(=O)NC2=CC(=O)C(=C(C1)C2=O)NCCN(C)C)C)OC)OC(=O)N)C)C)O)OC.Cl
- InChIKey
- DFSYBWLNYPEFJK-IHLRWNDRSA-N
- InChI
- show more
- Synonyms
- NSC 707545 | Amrubicin hydrochloride (JAN/USAN) | 17-DMAG, Hydrochloride Salt | ALVESPIMYCIN HYDROCHLORIDE [WHO-DD] |...
- PAP-AMCCAS: 960522-81-0 Formula: C17H14N2O4 Molecular Weight: 310.3Solid ≥97%◐ .Made to order · 8–12 wks Item #: P275741View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 1-(4-Methyl-coumarin-7-yl)-3-(4-hydroxyphenyl)urea
- 1-Pentylimidazole● In Stock — US Item #: P330951View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-pentylimidazole
- SMILES
- CCCCCN1C=CN=C1
- InChIKey
- UPYVYJSWGZMBOU-UHFFFAOYSA-N
- InChI
- 1S/C8H14N2/c1-2-3-4-6-10-7-5-9-8-10/h5,7-8H,2-4,6H2,1H3
- Synonyms
- 1H-Imidazole, 1-pentyl | 1H-Imidazole, 1-pentyl- | 1-n-pentylimidazole | MFCD11100855 | SY029770 | FT-0764122 | A8139...
Fast Shipping Same-day shipping on in-stock items
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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.