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CAS Number: 50-65-7
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CAS Number
50-65-7
PubChem CID
4477
Molecular Formula
C13H8Cl2N2O4
Molecular Weight
327.12 g/mol
Exact Mass
325.986112
InChIKey
RJMUSRYZPJIFPJ-UHFFFAOYSA-N
IUPAC Name
5-chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxybenzamide
SMILES String
C1=CC(=C(C=C1[N+](=O)[O-])Cl)NC(=O)C2=C(C=CC(=C2)Cl)O
Melting Point
225–23 °C
Vapor Pressure
Estimated value, unit not specified
Properties are provided as catalog reference data and may be confirmed through supplier documentation when required.
Structural features
Niclosamide (CAS 50-65-7) is listed in the Pharmaceutical Intermediates portfolio, with molecular formula C13H8Cl2N2O4 and molecular weight 327. 12 g/mol.
Sourcing context
Catalog reference for RFQ preparation, supplier confirmation, and research chemical sourcing review.
Research use context
Intended for research-stage medicinal chemistry and intermediate synthesis workflows; structure-derived tags include nitrogen-containing heterocycle.
Documentation needs
COA/SDS status, availability, lead time, pack size, and shipment documentation can be confirmed during quotation.
ChEMBL reports experimental activity evidence for: Muscarinic acetylcholine receptor M1 (Rattus norvegicus) — 2 assays; Prelamin-A/C (Homo sapiens) — 2 assays; Tyrosyl-DNA phosphodiesterase 1 (Homo sapiens) — 3 assays; Thrombopoietin (Homo sapiens) — 2 assays; Signal transducer and activator of transcription 3 (Homo sapiens) — 4 assays. These records describe research assays and do not establish therapeutic efficacy or clinical use.
Muscarinic acetylcholine receptor M1
Rattus norvegicus · SINGLE PROTEIN · 2 qualifying assays · 1 documents · best pChEMBL 8.74
Experimental evidence source: ChEMBL
Prelamin-A/C
Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 1 documents · best pChEMBL 7.6
Experimental evidence source: ChEMBL
Tyrosyl-DNA phosphodiesterase 1
Homo sapiens · SINGLE PROTEIN · 3 qualifying assays · 1 documents · best pChEMBL 7.4
Experimental evidence source: ChEMBL
Thrombopoietin
Homo sapiens · SINGLE PROTEIN · 2 qualifying assays · 1 documents · best pChEMBL 7
Experimental evidence source: ChEMBL
Signal transducer and activator of transcription 3
Homo sapiens · SINGLE PROTEIN · 4 qualifying assays · 3 documents · best pChEMBL 6.68
Experimental evidence source: ChEMBL
For supplier-issued SDS, request documentation before handling, storage, shipment, or procurement decisions.
Preliminary Safety Reference
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Safety Reference / SDS RequestCatalog navigation
Other public CAS pages in this catalog. These links support navigation across additional intermediates and do not imply equivalence, availability, or shared use.
Niclosamide is identified by CAS 50-65-7, with molecular formula C13H8Cl2N2O4, molecular weight 327.12, InChIKey RJMUSRYZPJIFPJ-UHFFFAOYSA-N.
ChEMBL contains qualifying experimental assay evidence associated with Muscarinic acetylcholine receptor M1, Prelamin-A/C, Tyrosyl-DNA phosphodiesterase 1, Thrombopoietin, Signal transducer and activator of transcription 3. These records do not establish therapeutic efficacy or clinical use.
Yes. Submit an RFQ and specify COA requirements. Lot-specific COA depends on supplier confirmation.
Yes. Supplier SDS can be requested through the RFQ workflow before handling, storage, shipment, or procurement decisions.
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