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
102,623Explore 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 (where available)—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
- Sulfo-Cyanine7 amine◐ .Made to order · 8–12 wks Item #: S276419View ProductPricing & Pack Sizes
Technical Identifiers
- Sulfo-Cyanine7 azide◐ .Made to order · 8–12 wks Item #: S276373View ProductPricing & Pack Sizes
Technical Identifiers
- Jatrorrhizine hydrochloride◐ .Made to order · 8–12 wks Item #: J275990View ProductPricing & Pack Sizes
Technical Identifiers
- Sumanirole maleateCAS: 179386-44-8 Formula: C11H13N3O·C4H4O4 Molecular Weight: 319.31Solid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥98%◐ .Made to order · 8–12 wks Item #: S274876View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (Z)-but-2-enedioic acid;(10R)-10-(methylamino)-1,3-diazatricyclo[6.3.1.04,12]dodeca-4,6,8(12)-trien-2-one
- SMILES
- CNC1CC2=C3C(=CC=C2)NC(=O)N3C1.C(=CC(=O)O)C(=O)O
- InChIKey
- VOJRMYBBPKNLLI-ORHWHDKWSA-N
- InChI
- 1S/C11H13N3O.C4H4O4/c1-12-8-5-7-3-2-4-9-10(7)14(6-8)11(15)13-9;5-3(6)1-2-4(7)8/h2-4,8,12H,5-6H2,1H3,(H,13,15);1-2H,(H,5,6)(H,7,8)/b;2-1-/t8-;/m1./s1
- Synonyms
- UNII-2OI87T3R1B | (Z)-but-2-enedioic acid;(10R)-10-(methylamino)-1,3-diazatricyclo[6.3.1.04,12]dodeca-4,6,8(12)-trien...
- Salmefamol≥98% mixture of isomers● In Stock — US warehouse, ships to EU* Item #: S125811View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-[1-hydroxy-2-[1-(4-methoxyphenyl)propan-2-ylamino]ethyl]-2-(hydroxymethyl)phenol
- SMILES
- CC(CC1=CC=C(C=C1)OC)NCC(C2=CC(=C(C=C2)O)CO)O
- InChIKey
- VPMWDFRZSIMDKW-UHFFFAOYSA-N
- InChI
- 1S/C19H25NO4/c1-13(9-14-3-6-17(24-2)7-4-14)20-11-19(23)15-5-8-18(22)16(10-15)12-21/h3-8,10,13,19-23H,9,11-12H2,1-2H3
- Synonyms
- AH3923 | AHR 3929 | Salmefamolum [INN-Latin] | 4-[1-hydroxy-2-[1-(4-methoxyphenyl)propan-2-ylamino]ethyl]-2-(hydroxym...
- Sulfadimethoxine Sodium Salt, Bacterial dihydropteroate synthase inhibitorCAS: 1037-50-9 EC Number: 213-859-3 PubChem CID: 13384041 Formula: C12H13N4NaO4S Molecular Weight: 332.31● In Stock — US warehouse, ships to EU* Item #: S119728View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- sodium;(4-aminophenyl)sulfonyl-(2,6-dimethoxypyrimidin-4-yl)azanide
- SMILES
- COC1=NC(=NC(=C1)[N-]S(=O)(=O)C2=CC=C(C=C2)N)OC.[Na+]
- InChIKey
- DQDZQHMCPDUUPC-UHFFFAOYSA-N
- InChI
- 1S/C12H13N4O4S.Na/c1-19-11-7-10(14-12(15-11)20-2)16-21(17,18)9-5-3-8(13)4-6-9;/h3-7H,13H2,1-2H3;/q-1;+1
- Synonyms
- Sulfadimethoxydiazine sodium | EN300-7406335 | Acotiamide HCl trihydrate | D08538 | s5096 | Sulfadimethoxin natrium |...
- JTV 519 fumarate◐ .Made to order · 8–12 wks Item #: J275634View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 3-(4-benzylpiperidin-1-yl)-1-(7-methoxy-3,5-dihydro-2H-1,4-benzothiazepin-4-yl)propan-1-one;(E)-but-2-enedioic acid
- SMILES
- COC1=CC2=C(C=C1)SCCN(C2)C(=O)CCN3CCC(CC3)CC4=CC=CC=C4.C(=CC(=O)O)C(=O)O
- InChIKey
- ISLOBKLDZGDFTB-WLHGVMLRSA-N
- InChI
- show more
- Synonyms
- 3-(4-Benzylpiperidin-1-yl)-1-(7-methoxy-3,5-dihydro-2H-1,4-benzothiazepin-4-yl)propan-1-one(E)-but-2-enedioicacid | 1...
- Trans-3-Methylcinnamic AcidCAS: 14473-89-3 Formula: C10H10O2 Molecular Weight: 162.19◐ .Made to order · 8–12 wks Item #: T302893View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (E)-3-(3-methylphenyl)prop-2-enoic acid
- SMILES
- CC1=CC(=CC=C1)C=CC(=O)O
- InChIKey
- JZINNAKNHHQBOS-AATRIKPKSA-N
- InChI
- 1S/C10H10O2/c1-8-3-2-4-9(7-8)5-6-10(11)12/h2-7H,1H3,(H,11,12)/b6-5+
- Synonyms
- 2-Propenoic acid, 3-(3-methylphenyl)-, (2E)- | AC7519 | Q27130825 | (E)-3-m-tolylacrylic acid | (E)-3-m-tolyl-acrylic...
- JW 74CAS: 863405-60-1 Formula: C24H20N6O2S Molecular Weight: 456.52● In Stock — US warehouse, ships to EU* Item #: J288239View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 5-[[4-(4-methoxyphenyl)-5-pyridin-4-yl-1,2,4-triazol-3-yl]sulfanylmethyl]-3-(4-methylphenyl)-1,2,4-oxadiazole
- SMILES
- CC1=CC=C(C=C1)C2=NOC(=N2)CSC3=NN=C(N3C4=CC=C(C=C4)OC)C5=CC=NC=C5
- InChIKey
- KRIKILRRJCIWNB-UHFFFAOYSA-N
- InChI
- 1S/C24H20N6O2S/c1-16-3-5-17(6-4-16)22-26-21(32-29-22)15-33-24-28-27-23(18-11-13-25-14-12-18)30(24)19-7-9-20(31-2)10-8-19/h3-14H,15H2,1-2H3
- Synonyms
- JW74 | JW-74 | 4-[4-(4-Methoxyphenyl)-5-[[[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]methyl]thio]-4H-1,2,4-triazol-3-yl...
- JW55CAS: 664993-53-7 Formula: C25H26N2O5 Molecular Weight: 434.48● In Stock — US warehouse, ships to EU* Item #: J304324View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-[4-[[4-(4-methoxyphenyl)oxan-4-yl]methylcarbamoyl]phenyl]furan-2-carboxamide
- SMILES
- COC1=CC=C(C=C1)C2(CCOCC2)CNC(=O)C3=CC=C(C=C3)NC(=O)C4=CC=CO4
- InChIKey
- ZJZWZIXSGNFWQQ-UHFFFAOYSA-N
- InChI
- show more
- Synonyms
- N-[4-[[[[Tetrahydro-4-(4-methoxyphenyl)-2H-pyran-4-yl]methyl]amino]carbonyl]phenyl]-2-furancarboxamide
- N-Nitroso-2-methylthiazolidine 4-Carboxylic Acid (NCTA)CAS: 103659-08-1 Formula: C5H8N2O3S Molecular Weight: 176.19◐ .Made to order · 8–12 wks Item #: N275484View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-methyl-3-nitroso-1,3-thiazolidine-4-carboxylic acid
- SMILES
- CC1N(C(CS1)C(=O)O)N=O
- InChIKey
- IENHCEGSGRQUTP-UHFFFAOYSA-N
- InChI
- 1S/C5H8N2O3S/c1-3-7(6-10)4(2-11-3)5(8)9/h3-4H,2H2,1H3,(H,8,9)
- Synonyms
- DTXSID30908540 | 4-Thiazolidinecarboxylicacid, 2-methyl-3-nitroso- | 2-methyl-3-nitroso-1,3-thiazolidine-4-carboxylic...
- Methyl 5-bromonicotinoylacetateCAS: 205985-97-3 Formula: C9H8BrNO3 Molecular Weight: 258.08◐ .Made to order · 8–12 wks Item #: M334572View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- methyl 3-(5-bromopyridin-3-yl)-3-oxopropanoate
- SMILES
- COC(=O)CC(=O)C1=CC(=CN=C1)Br
- InChIKey
- YVDRZMXIMURBFZ-UHFFFAOYSA-N
- InChI
- 1S/C9H8BrNO3/c1-14-9(13)3-8(12)6-2-7(10)5-11-4-6/h2,4-5H,3H2,1H3
- Synonyms
- 3-Pyridinepropanoicacid, 5-bromo-b-oxo-,methyl ester | DTXSID10371632 | methyl 5-bromonicotinoylacetate, AldrichCPR |...
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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.