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
24,635Navigate 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
- Prednisone 21-acetate10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: P421053View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- [2-[(8S,9S,10R,13S,14S,17R)-17-hydroxy-10,13-dimethyl-3,11-dioxo-6,7,8,9,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl] acetate
- SMILES
- CC(=O)OCC(=O)C1(CCC2C1(CC(=O)C3C2CCC4=CC(=O)C=CC34C)C)O
- InChIKey
- MOVRKLZUVNCBIP-RFZYENFJSA-N
- InChI
- show more
- Synonyms
- Prednisone acetate|Prednisone 21-acetate|125-10-0|Cortancyl|Delcortin|Deltalone|Nisone|delta-corlin|delta1-Cortisone-...
- Prazosin Hydrochloride, Adrenergic receptor alpha-1 antagonistCAS: 19237-84-4 EC Number: 242-903-4 PubChem CID: 68546 Formula: C19H21N5O4·HCl Molecular Weight: 419.872mM in DMSO● In Stock — US warehouse, ships to EU* Item #: P422354View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- [4-(4-amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl]-(furan-2-yl)methanone;hydrochloride
- SMILES
- COC1=C(C=C2C(=C1)C(=NC(=N2)N3CCN(CC3)C(=O)C4=CC=CO4)N)OC.Cl
- InChIKey
- WFXFYZULCQKPIP-UHFFFAOYSA-N
- InChI
- 1S/C19H21N5O4.ClH/c1-26-15-10-12-13(11-16(15)27-2)21-19(22-17(12)20)24-7-5-23(6-8-24)18(25)14-4-3-9-28-14;/h3-4,9-11H,5-8H2,1-2H3,(H2,20,21,22);1H
- Synonyms
- Prazosin hydrochloride|19237-84-4|Prazosin HCl|Minipress|Vasoflex|Peripress|Furazosin hydrochloride|Minipress Xl|Depr...
- Prilocaine Hydrochloride, Sodium channel alpha subunit blockerCAS: 1786-81-8 EC Number: 217-244-0 PubChem CID: 92163 Formula: C13H20N2O·HCl Molecular Weight: 256.7710mM in DMSO● In Stock — US warehouse, ships to EU* Item #: P422176View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N-(2-methylphenyl)-2-(propylamino)propanamide;hydrochloride
- SMILES
- CCCNC(C)C(=O)NC1=CC=CC=C1C.Cl
- InChIKey
- BJPJNTKRKALCPP-UHFFFAOYSA-N
- InChI
- 1S/C13H20N2O.ClH/c1-4-9-14-11(3)13(16)15-12-8-6-5-7-10(12)2;/h5-8,11,14H,4,9H2,1-3H3,(H,15,16);1H
- Synonyms
- GPCho(18:0/14:0) | HMS1922O15 | Prilocaine hydrochloride [USAN] | 4-trans-Hydroxyglibenclamide | N-(2-(Diethylamino)e...
- Prohydrojasmon racemate10mM in DMSO● In Stock — US warehouse, ships to EU* Item #: P421898View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- propyl 2-(3-oxo-2-pentylcyclopentyl)acetate
- SMILES
- CCCCCC1C(CCC1=O)CC(=O)OCCC
- InChIKey
- IPDFPNNPBMREIF-UHFFFAOYSA-N
- InChI
- 1S/C15H26O3/c1-3-5-6-7-13-12(8-9-14(13)16)11-15(17)18-10-4-2/h12-13H,3-11H2,1-2H3
- Synonyms
- SCHEMBL3245957 | PROPYL 2-(3-OXO-2-PENTYLCYCLOPENTYL)ACETATE | Prohydrojasmon racemate | Propyl (3-oxo-2-pentylcyclop...
- Pro-myristic acid● In Stock — US warehouse, ships to EU* Item #: P275234View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(dimethylamino)ethyl tetradecanoate
- SMILES
- CCCCCCCCCCCCCC(=O)OCCN(C)C
- InChIKey
- WVTLMDGNANZSAT-UHFFFAOYSA-N
- InChI
- 1S/C18H37NO2/c1-4-5-6-7-8-9-10-11-12-13-14-15-18(20)21-17-16-19(2)3/h4-17H2,1-3H3
- Synonyms
- NSC 83602 | 2-(N,N-Dimethylamino)ethyl myristate | 2-(Dimethylamino)ethyl myristate | Pro-myristic acid | (2-tetradec...
- Promethazine hydrochlorineCAS: 58-33-3 EC Number: 200-375-2 PubChem CID: 6014 Formula: C17H20N2S · HCl Molecular Weight: 320.8810mM in DMSO● In Stock — US warehouse, ships to EU* Item #: P424885View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- N,N-dimethyl-1-phenothiazin-10-ylpropan-2-amine;hydrochloride
- SMILES
- CC(CN1C2=CC=CC=C2SC3=CC=CC=C31)N(C)C.Cl
- InChIKey
- XXPDBLUZJRXNNZ-UHFFFAOYSA-N
- InChI
- 1S/C17H20N2S.ClH/c1-13(18(2)3)12-19-14-8-4-6-10-16(14)20-17-11-7-5-9-15(17)19;/h4-11,13H,12H2,1-3H3;1H
- Synonyms
- PROMETHAZINE HYDROCHLORIDE|58-33-3|Promethazine Hcl|Phenergan|N,N-dimethyl-1-(10H-phenothiazin-10-yl)propan-2-amine h...
- ProTx-II◐ .Made to order · 8–12 wks Item #: P275728View ProductPricing & Pack Sizes
Technical Identifiers
- Progesterone (NSC 9704)Liquid Moligand™ ? 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 #: P408142View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- NSC 64377, Pregn-4-ene-3,20-dione | Pregn-4-ene-3,20-dione
- Proglumide sodium salt● In Stock — US warehouse, ships to EU* Item #: P287748View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- sodium;4-benzamido-5-(dipropylamino)-5-oxopentanoate
- SMILES
- CCCN(CCC)C(=O)C(CCC(=O)[O-])NC(=O)C1=CC=CC=C1.[Na+]
- InChIKey
- UFMWGCINVOIJSO-UHFFFAOYSA-M
- InChI
- 1S/C18H26N2O4.Na/c1-3-12-20(13-4-2)18(24)15(10-11-16(21)22)19-17(23)14-8-6-5-7-9-14;/h5-9,15H,3-4,10-13H2,1-2H3,(H,19,23)(H,21,22);/q;+1/p-1
- Synonyms
- AKOS024456624 | Proglumide sodium | FT-0727740 | HMS2234D22 | sodium;4-benzamido-5-(dipropylamino)-5-oxopentanoate | ...
- PromestrieneCAS: 39219-28-8 EC Number: 254-361-6 PubChem CID: 9883915 Formula: C22H32O2 Molecular Weight: 328.4910mM in DMSO● In Stock — US warehouse, ships to EU* Item #: P423809View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- (8R,9S,13S,14S,17S)-17-methoxy-13-methyl-3-propoxy-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene
- SMILES
- CCCOC1=CC2=C(C=C1)C3CCC4(C(C3CC2)CCC4OC)C
- InChIKey
- IUWKNLFTJBHTSD-AANPDWTMSA-N
- InChI
- 1S/C22H32O2/c1-4-13-24-16-6-8-17-15(14-16)5-7-19-18(17)11-12-22(2)20(19)9-10-21(22)23-3/h6,8,14,18-21H,4-5,7,9-13H2,1-3H3/t18-,19-,20+,21+,22+/m1/s1
- Synonyms
- AC-3944 | SCHEMBL5188890 | AKOS000120732 | (1S,3aS,3bR,9bS,11aS)-1-methoxy-11a-methyl-7-propoxy-1H,2H,3H,3aH,3bH,4H,5...
- Primidone, Sodium channel alpha subunit blockerMoligand™ ? 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 #: P408422View ProductPricing & Pack Sizes
Technical Identifiers
- Synonyms
- NCI-C56360 | 5-ethyldihydro-5-phenyl-4,6(1H,5H)-pyrimidinedione
- Procaine penicillin G● In Stock — US warehouse, ships to EU* Item #: P413205View ProductPricing & Pack Sizes
Technical Identifiers
- IUPAC Name
- 2-(diethylamino)ethyl 4-aminobenzoate;(2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
- SMILES
- CCN(CC)CCOC(=O)C1=CC=C(C=C1)N.CC1(C(N2C(S1)C(C2=O)NC(=O)CC3=CC=CC=C3)C(=O)O)C
- InChIKey
- WHRVRSCEWKLAHX-LQDWTQKMSA-N
- InChI
- show more
- Synonyms
- EINECS 200-205-7 | Micro-Pen | Pro-Pen-G | WHRVRSCEWKLAHX-LQDWTQKMSA-N | (2S,5R,6R)-3,3-dimethyl-7-oxo-6-(2-phenylace...
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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.