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
- Di(N-succinimidyl) 3,3'-Dithiodipropionate [Cross-linking Reagent]Liquid 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: D424855View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2,5-dioxopyrrolidin-1-yl) 3-[[3-(2,5-dioxopyrrolidin-1-yl)oxy-3-oxopropyl]disulfanyl]propanoate
- SMILES
- C1CC(=O)N(C1=O)OC(=O)CCSSCCC(=O)ON2C(=O)CCC2=O
- InChIKey
- FXYPGCIGRDZWNR-UHFFFAOYSA-N
- InChI
- 1S/C14H16N2O8S2/c17-9-1-2-10(18)15(9)23-13(21)5-7-25-26-8-6-14(22)24-16-11(19)3-4-12(16)20/h1-8H2
- Synonyms
- 3,3'-Dithiopropionic acid di(N-succinimidyl ester) | 3,3'-DITHIO(SUCCINIMIDYL PROPIONATE) | Di(N-succinimidyl) 3,3 in...
- Di(N-succinimidyl) SuberateCAS: 68528-80-3 Formula: C16H20N2O8 Molecular Weight: 368.3410mM in DMSO● In Stock — US warehouse, ships to EU* Item #: D425455View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- bis(2,5-dioxopyrrolidin-1-yl) octanedioate
- SMILES
- C1CC(=O)N(C1=O)OC(=O)CCCCCCC(=O)ON2C(=O)CCC2=O
- InChIKey
- ZWIBGKZDAWNIFC-UHFFFAOYSA-N
- InChI
- 1S/C16H20N2O8/c19-11-7-8-12(20)17(11)25-15(23)5-3-1-2-4-6-16(24)26-18-13(21)9-10-14(18)22/h1-10H2
- Synonyms
- DSS | BCP29489 | Suberic acid bis(N-hydroxysuccinimide ester) | Suberic acid bis(N-hydroxysuccinimide ester), >=95%, ...
- Diazoxide, Activator of K ir6.1;Activator of K ir6.2Moligand™ ? 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 #: D423637View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 7-chloro-3-methyl-4H-1λ6,2,4-benzothiadiazine 1,1-dioxide
- SMILES
- CC1=NS(=O)(=O)C2=C(N1)C=CC(=C2)Cl
- InChIKey
- GDLBFKVLRPITMI-UHFFFAOYSA-N
- InChI
- 1S/C8H7ClN2O2S/c1-5-10-7-3-2-6(9)4-8(7)14(12,13)11-5/h2-4H,1H3,(H,10,11)
- Synonyms
- diazoxide|364-98-7|Proglycem|Hyperstat|Hypertonalum|Eudemine|Proglicem|Dizoxide|Mutabase|7-Chloro-3-methyl-2H-1,2,4-b...
- Diaveridine10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: D424576View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-[(3,4-dimethoxyphenyl)methyl]pyrimidine-2,4-diamine
- SMILES
- COC1=C(C=C(C=C1)CC2=CN=C(N=C2N)N)OC
- InChIKey
- LDBTVAXGKYIFHO-UHFFFAOYSA-N
- InChI
- 1S/C13H16N4O2/c1-18-10-4-3-8(6-11(10)19-2)5-9-7-16-13(15)17-12(9)14/h3-4,6-7H,5H2,1-2H3,(H4,14,15,16,17)
- Synonyms
- CCG-213021 | 2, 5-[(3,4-dimethoxyphenyl)methyl]- | Diaveridina | EN300-7440332 | 5-[(3,4-dimethoxyphenyl)methyl]pyrim...
- DiZPKCAS: 1337883-32-5 Formula: C12H23N5O3 Molecular Weight: 285.34Solid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥95%● In Stock — US warehouse, ships to EU* Item #: D412805View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2S)-2-amino-6-[3-(3-methyldiazirin-3-yl)propylcarbamoylamino]hexanoic acid
- SMILES
- CC1(N=N1)CCCNC(=O)NCCCCC(C(=O)O)N
- InChIKey
- YGUIFRMUMYTGAV-VIFPVBQESA-N
- InChI
- 1S/C12H23N5O3/c1-12(16-17-12)6-4-8-15-11(20)14-7-3-2-5-9(13)10(18)19/h9H,2-8,13H2,1H3,(H,18,19)(H2,14,15,20)/t9-/m0/s1
- Dibasic Lead StearateCAS: 56189-09-4 EC Number: 260-043-8 PubChem CID: 5362548 Formula: C36H70O6Pb2 Molecular Weight: 1013.35◐ .Made to order · 8–12 wks Item #: D304000View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- CCCCCCCCCCCCCCCCCC(=O)[O-].[Pb]
- InChIKey
- ONUFRYFLRFLSOM-UHFFFAOYSA-M
- InChI
- 1S/C18H36O2.Pb/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2-17H2,1H3,(H,19,20);/p-1
- Synonyms
- Dibasic lead stearate|Dioxobis(stearato)dilead|56189-09-4|Listab 51|Lead stearate dibasic|Octadecanoic acid, lead sal...
- DichloroiodomethaneCAS: 594-04-7 Formula: CHCl2I Molecular Weight: 210.83Liquid ≥92%● In Stock — US warehouse, ships to EU* Item #: D349681View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- dichloro(iodo)methane
- SMILES
- C(Cl)(Cl)I
- InChIKey
- HNLZCOJXSLDGKD-UHFFFAOYSA-N
- InChI
- 1S/CHCl2I/c2-1(3)4/h1H
- Synonyms
- EN300-22043946 | HNLZCOJXSLDGKD-UHFFFAOYSA-N | DCIM | Methane, dichloroiodo- | SCHEMBL1037737 | DTXSID7021570 | dichl...
- DibucaineMoligand™ ? 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 #: D426389View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-butoxy-N-[2-(diethylamino)ethyl]quinoline-4-carboxamide
- SMILES
- CCCCOC1=NC2=CC=CC=C2C(=C1)C(=O)NCCN(CC)CC
- InChIKey
- PUFQVTATUTYEAL-UHFFFAOYSA-N
- InChI
- 1S/C20H29N3O2/c1-4-7-14-25-19-15-17(16-10-8-9-11-18(16)22-19)20(24)21-12-13-23(5-2)6-3/h8-11,15H,4-7,12-14H2,1-3H3,(H,21,24)
- Synonyms
- dibucaine|Cinchocaine|85-79-0|Nupercaine|Nupercainal|Dermacaine|Dibucaine Base|Dibucain|Sovcaine|Percamine|Cinchocain...
- Dibenzepine HClCAS: 315-80-0 Formula: C16H17N3O•HCl Molecular Weight: 303.793646◐ .Made to order · 8–12 wks Item #: D336337View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-[2-(dimethylamino)ethyl]-11-methylbenzo[b][1,4]benzodiazepin-6-one;hydrochloride
- SMILES
- CN1C2=CC=CC=C2C(=O)N(C3=CC=CC=C31)CCN(C)C.Cl
- InChIKey
- RJPZIQRLRMWPRF-UHFFFAOYSA-N
- InChI
- 1S/C18H21N3O.ClH/c1-19(2)12-13-21-17-11-7-6-10-16(17)20(3)15-9-5-4-8-14(15)18(21)22;/h4-11H,12-13H2,1-3H3;1H
- Synonyms
- (E)-2-HEXENAL DIETHYL ACETAL [FHFI] | 10-(2-(dimethylamino)ethyl)-5-methyl-5H-dibenzo[b,e][1,4]diazepin-11(10H)-one h...
- Dibenzazepine (YO-01027)CAS: 209984-56-5 EC Number: 803-181-1 PubChem CID: 11454028 Formula: C26H23F2N3O3 Molecular Weight: 463.4810mM in DMSO● In Stock — US warehouse, ships to EU* Item #: D408731View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- DBZ | 7-(S)-[N'(3,5-difluorophenylacetyl)-L-alaninyl]amino-5-methyl-5,7-dihydro-6H-dibenz[b,d]azepin-6-one
- Dibenzepine HClCAS: 315-80-0 Formula: C16H17N3O•HCl Molecular Weight: 303.79364610mM in DMSO◐ .Made to order · 8–12 wks Item #: D423289View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-[2-(dimethylamino)ethyl]-11-methylbenzo[b][1,4]benzodiazepin-6-one;hydrochloride
- SMILES
- CN1C2=CC=CC=C2C(=O)N(C3=CC=CC=C31)CCN(C)C.Cl
- InChIKey
- RJPZIQRLRMWPRF-UHFFFAOYSA-N
- InChI
- 1S/C18H21N3O.ClH/c1-19(2)12-13-21-17-11-7-6-10-16(17)20(3)15-9-5-4-8-14(15)18(21)22;/h4-11H,12-13H2,1-3H3;1H
- Synonyms
- Dibenzepin hydrochloride|315-80-0|Dibenzepine HCl|Dibenzepine hydrochloride|Dibenzepin HCl|Noveril|Ansiopax|Neodalit|...
- Dibucaine HClCAS: 61-12-1 Formula: C20H29N3O2.HCl Molecular Weight: 379.92● In Stock — US warehouse, ships to EU* Item #: D413089View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-butoxy-N-[2-(diethylamino)ethyl]quinoline-4-carboxamide;hydrochloride
- SMILES
- CCCCOC1=NC2=CC=CC=C2C(=C1)C(=O)NCCN(CC)CC.Cl
- InChIKey
- IVHBBMHQKZBJEU-UHFFFAOYSA-N
- InChI
- 1S/C20H29N3O2.ClH/c1-4-7-14-25-19-15-17(16-10-8-9-11-18(16)22-19)20(24)21-12-13-23(5-2)6-3;/h8-11,15H,4-7,12-14H2,1-3H3,(H,21,24);1H
- Synonyms
- Cincaine chloride | Cinchokain hydrochlorid | AS-33525 | Cinchocaine hydrochloride, European Pharmacopoeia (EP) Refer...
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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.