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
24,653Navigate 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
102,664Explore 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)
19,717Find 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)
8,793Shop 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.
Popular Products
- NaringeninSolid ≥97%● In Stock — US Item #: N164488View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2S)-5,7-dihydroxy-2-(4-hydroxyphenyl)-2,3-dihydrochromen-4-one
- SMILES
- C1C(OC2=CC(=CC(=C2C1=O)O)O)C3=CC=C(C=C3)O
- InChIKey
- FTVWIRXFELQLPI-ZDUSSCGKSA-N
- InChI
- 1S/C15H12O5/c16-9-3-1-8(2-4-9)13-7-12(19)15-11(18)5-10(17)6-14(15)20-13/h1-6,13,16-18H,7H2/t13-/m0/s1
- Synonyms
- BIDD:ER0116 | EINECS 207-550-2 | SCHEMBL384010 | NARINGENIN [INCI] | AKOS016843490 | Phytochemistry 8: 127 (1969) | B...
- L-Pinaverium bromideCAS: 53251-94-8 Formula: C26H41Br2NO4 Molecular Weight: 591.425● In Stock — US Item #: L176705View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-[(2-bromo-4,5-dimethoxyphenyl)methyl]-4-[2-[2-(6,6-dimethyl-2-bicyclo[3.1.1]heptanyl)ethoxy]ethyl]morpholin-4-ium;bromide
- SMILES
- CC1(C2CCC(C1C2)CCOCC[N+]3(CCOCC3)CC4=CC(=C(C=C4Br)OC)OC)C.[Br-]
- InChIKey
- IKGXLCMLVINENI-UHFFFAOYSA-M
- InChI
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- Synonyms
- LAT 1717; LAT-1717; LAT1717 | Pinaverium bromide [INN] | EINECS 258-450-0 | Bromuro de pinaverio | Dicetel | PINAVERI...
- Minoxidil sulfateCAS: 83701-22-8 Formula: C9H15N5O4S Molecular Weight: 289.31● In Stock — US Item #: M335127View ProductPricing & Pack Sizes
Technical Identifiers
- SMILES
- C1CCN(CC1)C2=CC(=[N+](C(=N2)N)OS(=O)(=O)[O-])N
- Synonyms
- 6-(1-Piperidinyl)-2,4-pyrimidinediamine-3-oxide Sulfate | U-58838
- Azanylidynephosphane● In Stock — US Item #: A305202View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- azanylidynephosphane
- SMILES
- N#P
- InChIKey
- AOPJVJYWEDDOBI-UHFFFAOYSA-N
- InChI
- 1S/NP/c1-2
- Synonyms
- Phosphorous nitride|azanylidynephosphane|17739-47-8|52934-12-0|Phosphorus pentanitr|EINECS 258-263-4|Phosphorus penta...
- Atriopeptin IICAS: 89139-54-8 Formula: C98H156N34O32S2 Molecular Weight: 2386.63◐ .Made to order · 8–12 wks Item #: A118765View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
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- InChIKey
- MAGGONBKRAPXMU-KJZYAOAHSA-N
- InChI
- show more
- Synonyms
- 89139-54-8|Atrial natriuretic factor (5-27)|Atriopeptin II rat|Atriopeptin (5-27)|alpha-r-Anp (5-27)|Anf (5-27)|Anp (...
- Atriopeptin III（TFA）CAS: 90817-13-3 (free) PubChem CID: 16142364 Formula: C107H165N35O34S2(free) Molecular Weight: 2549.8(free)● In Stock — US Item #: A396768View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- UNII-2Q3V77H73V | Atriopeptin 3 | 2Q3V77H73V | Atriopeptin III rat | Atriopeptin-21 (rat), 21a-L-phenylalanine-21b-L-...
- MirinCAS: 299953-00-7 Formula: C10H8N2O2S Molecular Weight: 220.25◐ .Made to order · 8–12 wks Item #: M275437View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- 2-Amino-5-[(4-hydroxyphenyl)methylene]-4(5H)-thiazolone
- Micafungin FR-179642 impurity (acid)CAS: 168110-44-9 Formula: C35H52N8O20S Molecular Weight: 936.89● In Stock — US Item #: M305129View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
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- SMILES
- CC1CN2C(C1O)C(=O)NC(C(CC(C(=O)NC(C(=O)N3CC(CC3C(=O)NC(C(=O)NC(C2=O)C(CC(=O)N)O)C(C(C4=CC(=C(C=C4)O)OS(=O)(=O)O)O)O)O)C(C)O)N)O)O
- InChIKey
- QCYMOOBOFFUBHZ-CPYYHODSSA-N
- InChI
- show more
- Synonyms
- FR179642 | FR-179642 | UNII-44677O2TDO | AKOS030524387 | Micafungin FR-179642 impurity | QCYMOOBOFFUBHZ-CPYYHODSSA-N ...
- BI-9627 hydrochloride● In Stock — US Item #: B286959View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 4-(1-acetylpiperidin-4-yl)-N-(diaminomethylidene)-3-(trifluoromethyl)benzamide;hydrochloride
- SMILES
- CC(=O)N1CCC(CC1)C2=C(C=C(C=C2)C(=O)N=C(N)N)C(F)(F)F.Cl
- InChIKey
- SLSZLEROFKLICF-UHFFFAOYSA-N
- InChI
- 1S/C16H19F3N4O2.ClH/c1-9(24)23-6-4-10(5-7-23)12-3-2-11(14(25)22-15(20)21)8-13(12)16(17,18)19;/h2-3,8,10H,4-7H2,1H3,(H4,20,21,22,25);1H
- Synonyms
- BIX Hydrochloride | BIX HCl | Benzamide, 4-(1-acetyl-4-piperidinyl)-N-(aminoiminomethyl)-3-(trifluoromethyl)-, hydroc...
- Milameline hydrochlorideCAS: 139886-04-7 Formula: C8H14N2O.HCl Molecular Weight: 190.67◐ .Made to order · 8–12 wks Item #: M288672View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (E)-N-methoxy-1-(1-methyl-3,6-dihydro-2H-pyridin-5-yl)methanimine;hydrochloride
- SMILES
- CN1CCC=C(C1)C=NOC.Cl
- InChIKey
- WEBMRZODPLSRKR-MLBSPLJJSA-N
- InChI
- 1S/C8H14N2O.ClH/c1-10-5-3-4-8(7-10)6-9-11-2;/h4,6H,3,5,7H2,1-2H3;1H/b9-6+;
- Synonyms
- RU 35926 | 1,2,5,6-Tetrahydro-1-methylnicotinaldehyde (E)-O-methyloxime monohydrochloride | MILAMELINE HYDROCHLORIDE ...
- 5′-Chloro-5′-deoxyadenosineCAS: 892-48-8 Formula: C10H12ClN5O3 Molecular Weight: 285.69◐ .Made to order · 8–12 wks Item #: C341772View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (2R,3R,4S,5S)-2-(6-aminopurin-9-yl)-5-(chloromethyl)oxolane-3,4-diol
- SMILES
- C1=NC(=C2C(=N1)N(C=N2)C3C(C(C(O3)CCl)O)O)N
- InChIKey
- IYSNPOMTKFZDHZ-KQYNXXCUSA-N
- InChI
- 1S/C10H12ClN5O3/c11-1-4-6(17)7(18)10(19-4)16-3-15-5-8(12)13-2-14-9(5)16/h2-4,6-7,10,17-18H,1H2,(H2,12,13,14)/t4-,6-,7-,10-/m1/s1
- Synonyms
- PDSP1_001068 | 5'-deoxy-5'-chloroadenosine | 5-Deoxy-5-chloroadenosine | BRN 0624885 | CAS-30299-08-2 | C19768 | AMY2...
- Mono-(6-amino-6-deoxy)-β-cyclodextrinCAS: 29390-67-8 Formula: C42H71NO34 Molecular Weight: 1134Solid ≥99%● In Stock — US Item #: M303345View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- show more
- SMILES
- C(C1C2C(C(C(O1)OC3C(OC(C(C3O)O)OC4C(OC(C(C4O)O)OC5C(OC(C(C5O)O)OC6C(OC(C(C6O)O)OC7C(OC(C(C7O)O)OC8C(OC(O2)C(C8O)O)CO)CO)CO)CO)CO)CO)O)O)N
- InChIKey
- OZBFLQITCMCIOY-FOUAGVGXSA-N
- InChI
- show more
- Synonyms
- 6-Amino-6-deoxycyclomaltoheptaose | 6-Monoamino-β-cyclodextrin | 6A-Amino-6A-deoxy-β-cyclodextrin | 6-Amino-6-deoxy-β...
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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.