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
24,639Navigate 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
2,815PROTAC 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
102,615Explore 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
- SS58Uxz8ZUCAS: 210751-39-6 Formula: C24H25FN4O2S Molecular Weight: 452.5◐ Made to order · 8–12 wks Item #: S668871View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-[2-[4-(6-fluoro-1H-indol-3-yl)-3,6-dihydro-2H-pyridin-1-yl]ethyl]-2lambda6-thia-1,3-diazatricyclo[6.3.1.04,12]dodeca-4,6,8(12)-triene 2,2-dioxide
- SMILES
- C1CC2=C3C(=CC=C2)N(S(=O)(=O)N3C1)CCN4CCC(=CC4)C5=CNC6=C5C=CC(=C6)F
- InChIKey
- BJIPVHLRWSDKOS-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- LY-367,265|LY-367265|LY367265|LY 367265|1-(2-(4-(6-Fluoro-1H-indol-3-yl)-3,6-dihydro-1(2H)-pyridinyl)ethyl)-5,6-dihyd...
- Saripidem◐ Made to order · 8–12 wks Item #: S668800View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[[2-(4-chlorophenyl)imidazo[1,2-a]pyridin-3-yl]methyl]-N-methylbutanamide
- SMILES
- CCCC(=O)N(C)CC1=C(N=C2N1C=CC=C2)C3=CC=C(C=C3)Cl
- InChIKey
- LIFDPEORUVTOCP-UHFFFAOYSA-N
- InChI
- 1S/C19H20ClN3O/c1-3-6-18(24)22(2)13-16-19(14-8-10-15(20)11-9-14)21-17-7-4-5-12-23(16)17/h4-5,7-12H,3,6,13H2,1-2H3
- Synonyms
- Saripidem|Saripidem [INN]|N-((2-(p-Chlorophenyl)-imidazo(1,2-a)pyridin-3-yl)methyl)-N-methylbutyramide.|Butanamide, N...
- S-Isopropyl-isothiourea◐ Made to order · 8–12 wks Item #: S668288View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- propan-2-yl carbamimidothioate
- SMILES
- CC(C)SC(=N)N
- InChIKey
- XSSNABKEYXKKMK-UHFFFAOYSA-N
- InChI
- 1S/C4H10N2S/c1-3(2)7-4(5)6/h3H,1-2H3,(H3,5,6)
- Synonyms
- S-ISOPROPYL-ISOTHIOUREA|2-Isopropyl-isothiourea|Isopropyl carbamimidothioate|propan-2-yl carbamimidothioate|S-isoprop...
- SR-59230A free baseCAS: 174689-38-4 Formula: C21H27NO2 Molecular Weight: 325.4◐ Made to order · 8–12 wks Item #: S668915View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2S)-1-(2-ethylphenoxy)-3-[[(1S)-1,2,3,4-tetrahydronaphthalen-1-yl]amino]propan-2-ol
- SMILES
- CCC1=CC=CC=C1OCC(CNC2CCCC3=CC=CC=C23)O
- InChIKey
- VFDHMSXXELYMRW-ICSRJNTNSA-N
- InChI
- 1S/C21H27NO2/c1-2-16-8-4-6-13-21(16)24-15-18(23)14-22-20-12-7-10-17-9-3-5-11-19(17)20/h3-6,8-9,11,13,18,20,22-23H,2,7,10,12,14-15H2,1H3/t18-,20-/m0/s1
- Synonyms
- SR-59230A free base|SR 59230A - parent|SR-59230A|SR-59230A free base, (-)-|(S)-1-(2-ETHYLPHENOXY)-3-(((S)-1,2,3,4-TET...
- SSR-504734 free base◐ Made to order · 8–12 wks Item #: S669051View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-chloro-N-[(S)-phenyl-[(2S)-piperidin-2-yl]methyl]-3-(trifluoromethyl)benzamide
- SMILES
- C1CCNC(C1)C(C2=CC=CC=C2)NC(=O)C3=C(C(=CC=C3)C(F)(F)F)Cl
- InChIKey
- MEZRZVWPLXVLSO-WMZOPIPTSA-N
- InChI
- show more
- Synonyms
- SSR-504734 free base|2-Chloro-N-((S)-phenyl((2S)-piperidin-2-yl)methyl)-3-(trifluoromethyl)benzamide|Benzamide, 2-chl...
- ScandeninCAS: 5084-00-4 Formula: C26H26O6 Molecular Weight: 434.5◐ Made to order · 8–12 wks Item #: S669266View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-hydroxy-3-(4-hydroxyphenyl)-5-methoxy-8,8-dimethyl-6-(3-methylbut-2-enyl)pyrano[2,3-h]chromen-2-one
- SMILES
- CC(=CCC1=C2C(=C3C(=C1OC)C(=C(C(=O)O3)C4=CC=C(C=C4)O)O)C=CC(O2)(C)C)C
- InChIKey
- AAKJUGSASOCUFQ-UHFFFAOYSA-N
- InChI
- 1S/C26H26O6/c1-14(2)6-11-17-22-18(12-13-26(3,4)32-22)24-20(23(17)30-5)21(28)19(25(29)31-24)15-7-9-16(27)10-8-15/h6-10,12-13,27-28H,11H2,1-5H3
- Synonyms
- Scandenin|SDCCGMLS-0066849.P001|2H,8H-Benzo[1,2-b:3,4-b']dipyran-2-one, 4-hydroxy-3-(4-hydroxyphenyl)-5-methoxy-8,8-d...
- Sunepitron◐ Made to order · 8–12 wks Item #: S668123View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-[[(7S,9aS)-2-pyrimidin-2-yl-1,3,4,6,7,8,9,9a-octahydropyrido[1,2-a]pyrazin-7-yl]methyl]pyrrolidine-2,5-dione
- SMILES
- C1CC2CN(CCN2CC1CN3C(=O)CCC3=O)C4=NC=CC=N4
- InChIKey
- UXWBIYCPUVWKHP-KBPBESRZSA-N
- InChI
- 1S/C17H23N5O2/c23-15-4-5-16(24)22(15)11-13-2-3-14-12-21(9-8-20(14)10-13)17-18-6-1-7-19-17/h1,6-7,13-14H,2-5,8-12H2/t13-,14-/m0/s1
- Synonyms
- sunepitron|Sunepitron [INN]|Cp 93393|CP-93393|CP-93,393|2,5-Pyrrolidinedione, 1-(((7S,9aS)-octahydro-2-(2-pyrimidinyl...
- TerikalantCAS: 132338-79-5 Formula: C24H31NO3 Molecular Weight: 381.5◐ Made to order · 8–12 wks Item #: T667936View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-[2-[(4S)-3,4-dihydro-2H-chromen-4-yl]ethyl]-4-(3,4-dimethoxyphenyl)piperidine
- SMILES
- COC1=C(C=C(C=C1)C2CCN(CC2)CCC3CCOC4=CC=CC=C34)OC
- InChIKey
- UIZPEXQHMIZQPQ-IBGZPJMESA-N
- InChI
- 1S/C24H31NO3/c1-26-23-8-7-20(17-24(23)27-2)18-9-13-25(14-10-18)15-11-19-12-16-28-22-6-4-3-5-21(19)22/h3-8,17-19H,9-16H2,1-2H3/t19-/m0/s1
- Synonyms
- Terikalant|Terikalant [INN]|RP-58866|1-[2-[(4S)-3,4-dihydro-2H-chromen-4-yl]ethyl]-4-(3,4-dimethoxyphenyl)piperidine|...
- Spiro[9h-fluorene-9,4'-imidazolidine]-2',5'-dioneCAS: 6278-92-8 EC Number: 879-073-3 PubChem CID: 234512 Formula: C15H10N2O2 Molecular Weight: 250.25◐ Made to order · 8–12 wks Item #: S668176View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- spiro[fluorene-9,5'-imidazolidine]-2',4'-dione
- SMILES
- C1=CC=C2C(=C1)C3=CC=CC=C3C24C(=O)NC(=O)N4
- InChIKey
- SCDXMQOKVWBFBD-UHFFFAOYSA-N
- InChI
- 1S/C15H10N2O2/c18-13-15(17-14(19)16-13)11-7-3-1-5-9(11)10-6-2-4-8-12(10)15/h1-8H,(H2,16,17,18,19)
- Synonyms
- spiro[9h-fluorene-9,4'-imidazolidine]-2',5'-dione|SPIRO[FLUORENE-9,4'-IMIDAZOLIDINE]-2',5'-DIONE|spiro(fluorene-9,4'-...
- SezolamideCAS: 123308-22-5 Formula: C11H18N2O4S3 Molecular Weight: 338.5◐ Made to order · 8–12 wks Item #: S667921View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (4S)-4-(2-methylpropylamino)-7,7-dioxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide
- SMILES
- CC(C)CNC1CCS(=O)(=O)C2=C1C=C(S2)S(=O)(=O)N
- InChIKey
- JFLUCCKXAYBETQ-VIFPVBQESA-N
- InChI
- 1S/C11H18N2O4S3/c1-7(2)6-13-9-3-4-19(14,15)11-8(9)5-10(18-11)20(12,16)17/h5,7,9,13H,3-4,6H2,1-2H3,(H2,12,16,17)/t9-/m0/s1
- Synonyms
- SEZOLAMIDE|Sezolamide [INN]|(4S)-4-(2-methylpropylamino)-7,7-dioxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamid...
- TebufeloneCAS: 112018-00-5 Formula: C20H28O2 Molecular Weight: 300.44Solid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥97%● In Stock — US warehouse, ships to EU* Item #: T667919View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-(3,5-ditert-butyl-4-hydroxyphenyl)hex-5-yn-1-one
- SMILES
- CC(C)(C)C1=CC(=CC(=C1O)C(C)(C)C)C(=O)CCCC#C
- InChIKey
- ZHXUEUKVDMWSKV-UHFFFAOYSA-N
- InChI
- 1S/C20H28O2/c1-8-9-10-11-17(21)14-12-15(19(2,3)4)18(22)16(13-14)20(5,6)7/h1,12-13,22H,9-11H2,2-7H3
- Synonyms
- Tebufelone|1-(3,5-ditert-butyl-4-hydroxyphenyl)hex-5-yn-1-one|NE 11740|3',5'-Di-tert-butyl-4'-hydroxy-5-hexynophenone...
- TanogitranCAS: 637328-69-9 Formula: C25H31N7O3 Molecular Weight: 477.6◐ Made to order · 8–12 wks Item #: T669016View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[[(2R)-2-[2-[(4-carbamimidoylanilino)methyl]-1-methylbenzimidazol-5-yl]-1-oxo-1-pyrrolidin-1-ylpropan-2-yl]amino]acetic acid
- SMILES
- CC(C1=CC2=C(C=C1)N(C(=N2)CNC3=CC=C(C=C3)C(=N)N)C)(C(=O)N4CCCC4)NCC(=O)O
- InChIKey
- MAOALPSHCIBFJZ-RUZDIDTESA-N
- InChI
- show more
- Synonyms
- Tanogitran|Tanogitran [INN]|BIBT986|BIBT-986|N-((2R)-2-(2-((4-Carbamimidoylanilino)methyl)-1-methyl-1H-benzimidazol-5...
![Spiro[9h-fluorene-9,4'-imidazolidine]-2',5'-dione - CAS No(6278-92-8) by Aladdin Scientific](https://www.aladdinsci.com/media/catalog/product/cache/6360e336b2a70951114dbd37294096ee/S/6/S668176.jpg)
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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.
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