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
- Erlotinib-d6 HClCAS: 1189953-78-3 Formula: C22H18D6ClN3O4 Molecular Weight: 399.48 + 36.46● In Stock — US warehouse, ships to EU* Item #: E381498View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-(3-ethynylphenyl)-6,7-bis[2-(trideuteriomethoxy)ethoxy]quinazolin-4-amine;hydrochloride
- SMILES
- COCCOC1=C(C=C2C(=C1)C(=NC=N2)NC3=CC=CC(=C3)C#C)OCCOC.Cl
- InChIKey
- GTTBEUCJPZQMDZ-HVTBMTIBSA-N
- InChI
- show more
- Synonyms
- Tarceva-d3 | N-(3-Ethynylphenyl)-6,7-bis(2-methoxyethoxy-d3)-4-quinazolinamine Hydrochloride
- Ertapenem sodium(L-749345), Bacterial penicillin-binding protein inhibitorSolid Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. GR ? Guaranteed Reagent grade — the highest analytical purity tier, with tightly controlled impurities. Use for precise quantitative work and reference measurements.● In Stock — US warehouse, ships to EU* Item #: E302984View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
- CC1C2C(C(=O)N2C(=C1SC3CC(NC3)C(=O)NC4=CC=CC(=C4)C(=O)O)C(=O)[O-])C(C)O.[Na+]
- InChIKey
- ZXNAQFZBWUNWJM-HRXMHBOMSA-M
- InChI
- show more
- Synonyms
- Ertapenem sodium | Q-201065 | MK-0826 | L-749345;MK-826 | AC-1633 | Ertapenem sodium salt | Sodium (4R,5S,6S)-3-(((3S...
- Ertapenem sodium(L-749345), Bacterial penicillin-binding protein inhibitorLiquid 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: E421825View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
- CC1C2C(C(=O)N2C(=C1SC3CC(NC3)C(=O)NC4=CC=CC(=C4)C(=O)O)C(=O)[O-])C(C)O.[Na+]
- InChIKey
- ZXNAQFZBWUNWJM-HRXMHBOMSA-M
- InChI
- show more
- Ertugliflozin L-pyroglutamic acidCAS: 1210344-83-4 EC Number: 863-196-4 PubChem CID: 57339449 Formula: C27H32ClNO10 Molecular Weight: 566Liquid 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: E420919View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
- CCOC1=CC=C(C=C1)CC2=C(C=CC(=C2)C34C(C(C(C(O3)(CO4)CO)O)O)O)Cl.C1CC(=O)NC1C(=O)O
- InChIKey
- YHIUPZFKHZTLSH-LXYIGGQGSA-N
- InChI
- show more
- Synonyms
- ERTUGLIFLOZIN PIDOLATE COMPONENT OF SEGLUROMET | D80789 | (S)-5-oxopyrrolidine-2-carboxylic acid compound with (1S,2S...
- Erucic acidLiquid 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: E420666View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (Z)-docos-13-enoic acid
- SMILES
- CCCCCCCCC=CCCCCCCCCCCCC(=O)O
- InChIKey
- DPUOLQHDNGRHBS-KTKRTIGZSA-N
- InChI
- 1S/C22H42O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24/h9-10H,2-8,11-21H2,1H3,(H,23,24)/b10-9-
- Synonyms
- (Z)-13-Docosenoic acid | DTXCID706931 | Prifac 2990 | C22:1,n-9 cis | Hystrene 2290 | HY-N7109A | C22:1n-9 | delta13:...
- Erythromycin CyclocarbonateLiquid 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: E408909View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- cyclic 11,12-carbonate erythromycin
- Erythromycin Ethylsuccinate, Bacterial 70S ribosome inhibitorLiquid 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: E408903View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- Erythromycin, 2-(ethyl butanedioate)
- Erythrosin BCAS: 16423-68-0 EC Number: 240-474-8 PubChem CID: 12961638 Formula: C20H6I4Na2O5 Molecular Weight: 879.88Liquid 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: E422032View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- disodium;2',4',5',7'-tetraiodo-3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate
- SMILES
- C1=CC=C2C(=C1)C(=O)OC23C4=CC(=C(C(=C4OC5=C(C(=C(C=C35)I)[O-])I)I)[O-])I.[Na+].[Na+]
- InChIKey
- RAGZEDHHTPQLAI-UHFFFAOYSA-L
- InChI
- 1S/C20H8I4O5.2Na/c21-11-5-9-17(13(23)15(11)25)28-18-10(6-12(22)16(26)14(18)24)20(9)8-4-2-1-3-7(8)19(27)29-20;;/h1-6,25-26H;;/q;2*+1/p-2
- Synonyms
- 16423-68-0|Erythrosin B|ERYTHROSINE|Erythrosine B|C.I. Acid Red 51|Erythrosine sodium (close form)|Sodium 2',4',5',7'...
- Equol, Estrogen receptor beta agonistSolid ≥98%● In Stock — US warehouse, ships to EU* Item #: E129401View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (3S)-3-(4-hydroxyphenyl)-3,4-dihydro-2H-chromen-7-ol
- SMILES
- C1C(COC2=C1C=CC(=C2)O)C3=CC=C(C=C3)O
- InChIKey
- ADFCQWZHKCXPAJ-GFCCVEGCSA-N
- InChI
- 1S/C15H14O3/c16-13-4-1-10(2-5-13)12-7-11-3-6-14(17)8-15(11)18-9-12/h1-6,8,12,16-17H,7,9H2/t12-/m1/s1
- Synonyms
- (?)-Equol | BDBM50410528 | EQUOL [INCI] | SCHEMBL43647 | (-)-Equol | CHEBI:34741 | A829437 | (4-methoxyphenyl)-piperi...
- ErianinCAS: 95041-90-0 Formula: C18H22O5 Molecular Weight: 318.3610mM in DMSO● In Stock — US warehouse, ships to EU* Item #: E427056View 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...
- Escitalopram Oxalate, Serotonin transporter inhibitorCAS: 219861-08-2 EC Number: 620-544-8 PubChem CID: 146571 Formula: C20H21FN2O·C2H2O4 Molecular Weight: 414.43Liquid 10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: E409043View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 5-Isobenzofurancarbonitrile, 1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-, (1S)-, ethanedioate (1:1)
- Esculentoside A10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: E425308View ProductPricing & Pack Sizes
Technical Identifiers
Fast Shipping Same-day shipping on in-stock items
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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.