(E)-2-(2-chlorobenzyl)-6-(4-methylstyryl)pyridazin-3(2H)-one CAS 1164520-24-4
| CAS No. | 1164520-24-4 |
| Molecular Formula | C20H17ClN2O |
| Molecular Weight | 336.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures (E)-2-(2-chlorobenzyl)-6-(4-methylstyryl)pyridazin-3(2H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
(E)-2-(2-chlorobenzyl)-6-(4-methylstyryl)pyridazin-3(2H)-one (CAS 1164520-24-4), molecular formula C20H17ClN2O and molecular weight 336.81 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (E)-2-(2-chlorobenzyl)-6-(4-methylstyryl)pyridazin-3(2H)-one (C20H17ClN2O) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H17ClN2O |
| Molecular Weight | 336.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related E Standards
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- 2-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzoic acid (CAS 6957-51-3)
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- 2-[5,7-Bis(trifluoromethyl)-1,8-naphthyridin-2-yl]-2-(4-bromophenyl)acetonitrile (CAS 478043-29-7)
- 2-(5-Methyl-2-(pyridin-2-yl)thiazol-4-yl)phenol (CAS 1421261-84-8)
- TRAF6 Peptide trifluoroacetate salt (CAS 852805-92-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com