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
- [4-(5-Chloromethyl-oxazolidin-2-yl)-phenyl]-dimethyl-amineCAS: 17996-49-5 Formula: C12H17ClN2O Molecular Weight: 240.74● In Stock — US warehouse, ships to EU* Item #: C356551View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-[5-(chloromethyl)-1,3-oxazolidin-2-yl]-N,N-dimethylaniline
- SMILES
- CN(C)C1=CC=C(C=C1)C2NCC(O2)CCl
- InChIKey
- AGJRWWYVQQFNKV-UHFFFAOYSA-N
- InChI
- 1S/C12H17ClN2O/c1-15(2)10-5-3-9(4-6-10)12-14-8-11(7-13)16-12/h3-6,11-12,14H,7-8H2,1-2H3
- Synonyms
- 4-[5-(Chloromethyl)-1,3-oxazolidin-2-yl]-N,N-dimethylaniline | AKOS016041765 | Benzenamine, 4-[5-(chloromethyl)-2-oxa...
- [5-(2-chlorophenyl)-2H-tetrazol-2-yl]acetic acid● In Stock — US warehouse, ships to EU* Item #: C356560View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-[5-(2-chlorophenyl)tetrazol-2-yl]acetic acid
- SMILES
- C1=CC=C(C(=C1)C2=NN(N=N2)CC(=O)O)Cl
- InChIKey
- XTEQROKRTGIKDV-UHFFFAOYSA-N
- InChI
- 1S/C9H7ClN4O2/c10-7-4-2-1-3-6(7)9-11-13-14(12-9)5-8(15)16/h1-4H,5H2,(H,15,16)
- Synonyms
- AKOS000291414 | STK394288 | 2-(5-(2-Chlorophenyl)-2H-tetrazol-2-yl)acetic acid | [5-(2-Chloro-phenyl)-tetrazol-2-yl]-...
- [5-(Fur-2-yl)-1-methyl-1H-pyrazol-3-yl]methanolCAS: 876728-41-5 Formula: C9H10N2O2 Molecular Weight: 178.19● In Stock — US warehouse, ships to EU* Item #: F355969View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- [5-(furan-2-yl)-1-methylpyrazol-3-yl]methanol
- SMILES
- CN1C(=CC(=N1)CO)C2=CC=CO2
- InChIKey
- XKIFRVDOWHFUHG-UHFFFAOYSA-N
- InChI
- 1S/C9H10N2O2/c1-11-8(5-7(6-12)10-11)9-3-2-4-13-9/h2-5,12H,6H2,1H3
- Synonyms
- SCHEMBL513067 | [5-(2-furyl)-1-methyl-1H-pyrazol-3-yl]methanol, AldrichCPR | XKIFRVDOWHFUHG-UHFFFAOYSA-N | FT-0755867...
- [Des-octanoyl]-Ghrelin (human) TFACAS: 313951-59-6(free) Formula: C141H235N47O41·C2HF3O2 Molecular Weight: 3358.51● In Stock — US warehouse, ships to EU* Item #: D407193View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- (Des-octanoyl)-Ghrelin, human,TFA | [Des-octanoyl]-Ghrelin, human,TFA
- [5′,5′′-2H2]uridineCAS: 82740-98-5 Formula: C9(2H)2H10N2O6 Molecular Weight: 246.22◐ .Made to order · 8–12 wks Item #: H356305View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 1-[(2R,3R,4S,5R)-5-[dideuterio(hydroxy)methyl]-3,4-dihydroxyoxolan-2-yl]pyrimidine-2,4-dione
- SMILES
- C1=CN(C(=O)NC1=O)C2C(C(C(O2)CO)O)O
- InChIKey
- DRTQHJPVMGBUCF-APTDQHSTSA-N
- InChI
- 1S/C9H12N2O6/c12-3-4-6(14)7(15)8(17-4)11-2-1-5(13)10-9(11)16/h1-2,4,6-8,12,14-15H,3H2,(H,10,13,16)/t4-,6-,7-,8-/m1/s1/i3D2
- Synonyms
- 1-β-D-Ribofuranosyluracil[5’,5”-D2]
- Lyspressin TFACAS: 50-57-7 Formula: C46H65N13O12S2 Molecular Weight: 1056.2210mM in Water● In Stock — US warehouse, ships to EU* Item #: L424353View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- C1CC(N(C1)C(=O)C2CSSCC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)NC(C(=O)N2)CC(=O)N)CCC(=O)N)CC3=CC=CC=C3)CC4=CC=C(C=C4)O)N)C(=O)NC(CCCCN)C(=O)NCC(=O)N
- InChIKey
- BJFIDCADFRDPIO-DZCXQCEKSA-N
- InChI
- show more
- Synonyms
- LYPRESSIN (MART.) | NCGC00181743-02 | Lipressina | 3-(Phenylalanine)-8-lysine oxytocin | HY-P0004 | [Lys8]AVP | BJFID...
- a-[[Fmoc]amino]-1-[alloc]-(aS)-4-piperidinepropanoic Acid● In Stock — US warehouse, ships to EU* Item #: A353007View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-(1-prop-2-enoxycarbonylpiperidin-4-yl)propanoic acid
- SMILES
- C=CCOC(=O)N1CCC(CC1)CC(C(=O)O)NC(=O)OCC2C3=CC=CC=C3C4=CC=CC=C24
- InChIKey
- RURLLCHNGWWRCW-DEOSSOPVSA-N
- InChI
- show more
- Synonyms
- starbld0003186 | a-[[Fmoc]amino]-1-[alloc]-(aS)-4-piperidinepropanoic Acid | (S)-2-((((9H-Fluoren-9-yl)methoxy)carbon...
- alfa-(2-Chloroehtyl)-2-thiohenemethanolCAS: 260354-12-9 Formula: C7H9ClOS Molecular Weight: 176.66● In Stock — US warehouse, ships to EU* Item #: A354219View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-chloro-1-thiophen-2-ylpropan-1-ol
- SMILES
- C1=CSC(=C1)C(CCCl)O
- InChIKey
- YISRPYKYTBBHBK-UHFFFAOYSA-N
- InChI
- 1S/C7H9ClOS/c8-4-3-6(9)7-2-1-5-10-7/h1-2,5-6,9H,3-4H2
- [dimethylamino-(2-oxopyridin-1-yl)oxymethylidene]-dimethylazanium,hexafluorophosphate● In Stock — US warehouse, ships to EU* Item #: D303558View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- [dimethylamino-(2-oxopyridin-1-yl)oxymethylidene]-dimethylazanium;hexafluorophosphate
- SMILES
- CN(C)C(=[N+](C)C)ON1C=CC=CC1=O.F[P-](F)(F)(F)(F)F
- InChIKey
- OVOWPFZLWCWFQE-UHFFFAOYSA-N
- InChI
- 1S/C10H16N3O2.F6P/c1-11(2)10(12(3)4)15-13-8-6-5-7-9(13)14;1-7(2,3,4,5)6/h5-8H,1-4H3;/q+1;-1
- Synonyms
- 1,1,3,3-Tetramethyl-2-(2-oxopyridin-1(2H)-yl)isouronium hexafluorophosphate(V) | A924114 | FT-0707679 | HPTUO-(1,2-Di...
- acalisib (GS-9820), PI3-kinase p110-delta subunit 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 #: A426550View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 6-fluoro-3-phenyl-2-[(1S)-1-(7H-purin-6-ylamino)ethyl]quinazolin-4-one
- SMILES
- CC(C1=NC2=C(C=C(C=C2)F)C(=O)N1C3=CC=CC=C3)NC4=NC=NC5=C4NC=N5
- InChIKey
- DOCINCLJNAXZQF-LBPRGKRZSA-N
- InChI
- show more
- Synonyms
- 5-amino-3-tert-butyl-n-p-tolylpyrazole | HY-12644 | NCGC00229746-04 | (S)-2-(1-(9H-Purin-6-ylamino)ethyl)-6-fluoro-3-...
- alpha-(4-Methoxyphenyl)phenylacetic acidCAS: 21749-83-7 Formula: C15H14O3 Molecular Weight: 242.28● In Stock — US warehouse, ships to EU* Item #: A354429View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(4-methoxyphenyl)-2-phenylacetic acid
- SMILES
- COC1=CC=C(C=C1)C(C2=CC=CC=C2)C(=O)O
- InChIKey
- LLILURMTCOXPIU-UHFFFAOYSA-N
- InChI
- 1S/C15H14O3/c1-18-13-9-7-12(8-10-13)14(15(16)17)11-5-3-2-4-6-11/h2-10,14H,1H3,(H,16,17)
- Synonyms
- AR3863 | A878934 | alpha-(4-Methoxyphenyl)phenylacetic acid | SCHEMBL1716394 | J-506041 | FT-0638147 | AKOS005069644 ...
- anilino(oxo)acetic acidCAS: 500-72-1 Formula: C8H7NO3 Molecular Weight: 165.15Solid ≥98%● In Stock — US warehouse, ships to EU* Item #: A354609View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-anilino-2-oxoacetic acid
- SMILES
- C1=CC=C(C=C1)NC(=O)C(=O)O
- InChIKey
- PQJZHMCWDKOPQG-UHFFFAOYSA-N
- InChI
- 1S/C8H7NO3/c10-7(8(11)12)9-6-4-2-1-3-5-6/h1-5H,(H,9,10)(H,11,12)
- Synonyms
- Acetic acid, oxo(phenylamino)- | AKOS003631999 | DTXSID4060105 | AI3-19496 | oxanilicacid | 136B46378D | oxo(phenylam...
![[4-(5-Chloromethyl-oxazolidin-2-yl)-phenyl]-dimethyl-amine](https://www.aladdinsci.com/media/catalog/product/cache/6360e336b2a70951114dbd37294096ee/C/3/C356551.png)
![[5-(2-chlorophenyl)-2H-tetrazol-2-yl]acetic acid - ≥97% CAS No(5626-38-0) by Aladdin Scientific](https://www.aladdinsci.com/media/catalog/product/cache/6360e336b2a70951114dbd37294096ee/C/3/C356560.png)
![[5-(Fur-2-yl)-1-methyl-1H-pyrazol-3-yl]methanol - 95%, used for , CAS No. 876728-41-5, by Aladdin Scientific](https://www.aladdinsci.com/media/catalog/product/cache/6360e336b2a70951114dbd37294096ee/F/3/F355969.png)
![[Des-octanoyl]-Ghrelin (human) TFA](https://www.aladdinsci.com/media/catalog/product/placeholder/default/default_5.jpg)
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![a-[[Fmoc]amino]-1-[alloc]-(aS)-4-piperidinepropanoic Acid](https://www.aladdinsci.com/media/catalog/product/cache/6360e336b2a70951114dbd37294096ee/A/3/A353007.png)
![[dimethylamino-(2-oxopyridin-1-yl)oxymethylidene]-dimethylazanium,hexafluorophosphate](https://www.aladdinsci.com/media/catalog/product/cache/6360e336b2a70951114dbd37294096ee/D/3/D303558.png)
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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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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.