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
24,638Navigate 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
2,815PROTAC 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
102,614Explore 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
- Epirubicin (IMI 28) HClLiquid 10mM in DMSO● In Stock — US Item #: E408486View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- NSC 256942, 4'-epidoxorubicin HCl | (8S,10S)-10-[(3-amino-2,3,6-trideoxy-α-L-arabino-hexopyranosyl)oxy]-�...
- Eplerenone, Mineralocorticoid receptor antagonistMoligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. 2mM in DMSO● In Stock — US Item #: E420533View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
- CC12CCC(=O)C=C1CC(C3C24C(O4)CC5(C3CCC56CCC(=O)O6)C)C(=O)OC
- InChIKey
- JUKPWJGBANNWMW-VWBFHTRKSA-N
- InChI
- show more
- Synonyms
- Eplerenone|107724-20-9|Epoxymexrenone|Inspra|Selara|SC-66110|Cgp 30083|CGP-30083|HSDB 7522|DTXSID2046094|UNII-6995V82...
- Eprotirome (KB2115), Thyroid hormone receptor beta-1 agonistCAS: 355129-15-6 Formula: C18H17Br2NO5 Molecular Weight: 487.14Liquid 10mM in DMSO● In Stock — US Item #: E423595View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-[3,5-dibromo-4-(4-hydroxy-3-propan-2-ylphenoxy)anilino]-3-oxopropanoic acid
- SMILES
- CC(C)C1=C(C=CC(=C1)OC2=C(C=C(C=C2Br)NC(=O)CC(=O)O)Br)O
- InChIKey
- VPCSYAVXDAUHLT-UHFFFAOYSA-N
- InChI
- 1S/C18H17Br2NO5/c1-9(2)12-7-11(3-4-15(12)22)26-18-13(19)5-10(6-14(18)20)21-16(23)8-17(24)25/h3-7,9,22H,8H2,1-2H3,(H,21,23)(H,24,25)
- Synonyms
- DTXSID10319332 | 3-((3,5-DIBROMO-4-(4-HYDROXY-3-(PROPAN-2-YL)PHENOXY)PHENYL)AMINO)-3-OXOPROPANOIC ACID | SCHEMBL75903...
- EpisilvestrolCAS: 697235-39-5 Formula: C34H38O13 Molecular Weight: 654.66◐ .Made to order · 8–12 wks Item #: E126128View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
- COC1C(OC(CO1)C(CO)O)OC2=CC3=C(C(=C2)OC)C4(C(C(C(C4(O3)C5=CC=C(C=C5)OC)C6=CC=CC=C6)C(=O)OC)O)O
- InChIKey
- GVKXFVCXBFGBCD-JRPGFILLSA-N
- InChI
- show more
- Synonyms
- DTXSID80466766 | CHEBI:66485 | Episilvestrol | epi-silvestrol | EX-A4881 | MS-30981 | HY-15359 | methyl (1R,2R,3S,3aR...
- EpoxomicinCAS: 134381-21-8 Formula: C28H50N4O7 Molecular Weight: 554.7310mM in DMSO● In Stock — US Item #: E421293View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
- CCC(C)C(C(=O)NC(C(C)O)C(=O)NC(CC(C)C)C(=O)C1(CO1)C)NC(=O)C(C(C)CC)N(C)C(=O)C
- InChIKey
- DOGIDQKFVLKMLQ-JTHVHQAWSA-N
- InChI
- show more
- Synonyms
- N-acetyl-N-methyl-L-isoleucyl-L-isoleucyl-N-((1S)-3-methyl-1-(((2R)-2-methyl-2-oxiranyl)carbonyl)butyl)-L-threoninami...
- Eprazinone 2HClLiquid 10mM in Water● In Stock — US Item #: E420441View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-[4-(2-ethoxy-2-phenylethyl)piperazin-1-yl]-2-methyl-1-phenylpropan-1-one;dihydrochloride
- SMILES
- CCOC(CN1CCN(CC1)CC(C)C(=O)C2=CC=CC=C2)C3=CC=CC=C3.Cl.Cl
- InChIKey
- BPMQVOKMMQFZGV-UHFFFAOYSA-N
- InChI
- 1S/C24H32N2O2.2ClH/c1-3-28-23(21-10-6-4-7-11-21)19-26-16-14-25(15-17-26)18-20(2)24(27)22-12-8-5-9-13-22;;/h4-13,20,23H,3,14-19H2,1-2H3;2*1H
- Synonyms
- CAS-10402-53-6 | Eprazinone hydrochloride (JAN) | NSC 317935 | FEMA No. 3290 | Hexahydroxylene | 3-[4-(2-ethoxy-2-phe...
- EprobemideCAS: 87940-60-1 Formula: C14H19ClN2O2 Molecular Weight: 282.7710mM in DMSO● In Stock — US Item #: E426646View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-chloro-N-(3-morpholin-4-ylpropyl)benzamide
- SMILES
- C1COCCN1CCCNC(=O)C2=CC=C(C=C2)Cl
- InChIKey
- YYFGRAGNYHYWEZ-UHFFFAOYSA-N
- InChI
- 1S/C14H19ClN2O2/c15-13-4-2-12(3-5-13)14(18)16-6-1-7-17-8-10-19-11-9-17/h2-5H,1,6-11H2,(H,16,18)
- Synonyms
- YYFGRAGNYHYWEZ-UHFFFAOYSA-N | BS-17747 | Eprobemida [INN-Spanish] | Eprobemide [INN] | Tox21_112151 | AKOS002663030 |...
- EprobemideCAS: 87940-60-1 Formula: C14H19ClN2O2 Molecular Weight: 282.77● In Stock — US Item #: E412779View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-chloro-N-(3-morpholin-4-ylpropyl)benzamide
- SMILES
- C1COCCN1CCCNC(=O)C2=CC=C(C=C2)Cl
- InChIKey
- YYFGRAGNYHYWEZ-UHFFFAOYSA-N
- InChI
- 1S/C14H19ClN2O2/c15-13-4-2-12(3-5-13)14(18)16-6-1-7-17-8-10-19-11-9-17/h2-5H,1,6-11H2,(H,16,18)
- Synonyms
- YYFGRAGNYHYWEZ-UHFFFAOYSA-N | BS-17747 | Eprobemida [INN-Spanish] | Eprobemide [INN] | Tox21_112151 | AKOS002663030 |...
- Epimedin A1● In Stock — US Item #: E412632View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- CC1C(C(C(C(O1)OC2=C(OC3=C(C2=O)C(=CC(=C3CC=C(C)C)OC4C(C(C(C(O4)CO)O)O)O)O)C5=CC=C(C=C5)OC)O)OC6C(C(C(C(O6)CO)O)O)O)O
- InChIKey
- NLVBYGTTYRFJKH-YFNAFYFCSA-N
- InChI
- show more
- Synonyms
- Hexandraside F
- Epostane◐ .Made to order · 8–12 wks Item #: E334445View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (1S,2R,6R,8S,11S,12S,15S,16S)-5,15-dihydroxy-2,6,15,16-tetramethyl-7-oxapentacyclo[9.7.0.02,8.06,8.012,16]octadec-4-ene-4-carbonitrile
- SMILES
- CC12CCC3C(C1CCC2(C)O)CCC45C3(CC(=C(C4(O5)C)O)C#N)C
- InChIKey
- CETKWEWBSMKADK-GSXVSZIWSA-N
- InChI
- show more
- Synonyms
- 4,5-EPOXY-3,17-DIHYDROXY-4,17-DIMETHYLANDROST-2-ENE-2-CARBONITRI | WIN 32729 | UNII-6375T36951 | CETKWEWBSMKADK-GSXVS...
- ErianinCAS: 95041-90-0 Formula: C18H22O5 Molecular Weight: 318.36Solid ≥98%● In Stock — US Item #: E414341View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-methoxy-5-[2-(3,4,5-trimethoxyphenyl)ethyl]phenol
- SMILES
- COC1=C(C=C(C=C1)CCC2=CC(=C(C(=C2)OC)OC)OC)O
- InChIKey
- UXDFUVFNIAJEGM-UHFFFAOYSA-N
- InChI
- 1S/C18H22O5/c1-20-15-8-7-12(9-14(15)19)5-6-13-10-16(21-2)18(23-4)17(11-13)22-3/h7-11,19H,5-6H2,1-4H3
- Synonyms
- 5-(3,4,5-trimethoxyphenethyl)-2-methoxyphenol | DTXSID40326751 | UXDFUVFNIAJEGM-UHFFFAOYSA-N | NSC-613744 | FT-060870...
- ErastinCAS: 571203-78-6 Formula: C30H31ClN4O4 Molecular Weight: 547.0410mM in DMSO● In Stock — US Item #: E424821View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[1-[4-[2-(4-chlorophenoxy)acetyl]piperazin-1-yl]ethyl]-3-(2-ethoxyphenyl)quinazolin-4-one
- SMILES
- CCOC1=CC=CC=C1N2C(=O)C3=CC=CC=C3N=C2C(C)N4CCN(CC4)C(=O)COC5=CC=C(C=C5)Cl
- InChIKey
- BKQFRNYHFIQEKN-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- C21478 | EX-A295 | s7242 | BCP27907 | ZJA3NS42T9 | 4(3H)-Quinazolinone, 2-[1-[4-[2-(4-chlorophenoxy)acetyl]-1-piperaz...
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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.