5-Chloro-4-(naphthalen-2-yloxy)-2-(p-tolyl)pyridazin-3(2H)-one CAS 478067-08-2
| CAS No. | 478067-08-2 |
| Molecular Formula | C21H15ClN2O2 |
| Molecular Weight | 362.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Chloro-4-(naphthalen-2-yloxy)-2-(p-tolyl)pyridazin-3(2H)-one.
5-Chloro-4-(naphthalen-2-yloxy)-2-(p-tolyl)pyridazin-3(2H)-one (CAS 478067-08-2) is a high-purity analytical reference standard with the molecular formula C21H15ClN2O2 and a molecular weight of 362.81 g/mol.
The molecular framework of 5-Chloro-4-(naphthalen-2-yloxy)-2-(p-tolyl)pyridazin-3(2H)-one (C21H15ClN2O2) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Chloro-4-(naphthalen-2-yloxy)-2-(p-tolyl)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.
Physical & Chemical Properties
| Molecular Formula | C21H15ClN2O2 |
| Molecular Weight | 362.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 2-Chloro-N-(4-methoxy-phenyl)-N-[(4-methoxy-phenylcarbamoyl)-methyl]-acetamide (CAS 1092295-00-5)
- 1-[5-Chloro-1-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridazin-4-yl]piperidine-4-carboxamide (CAS 338413-89-1)
- 4-((2-Chloro-6-fluorobenzylidene)amino)-3-(2-methoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478256-58-5)
- 3-(4-Chloro-1-tosyl-1H-pyrrolo[2,3-b]pyridin-5-yl)propanal (CAS 1310731-78-2)
- 2-({2-chloro-5-[(dimethylamino)sulfonyl]benzoyl}amino)-3-methylbutanoic acid (CAS 1396980-30-5)
- 7-Chloro-4-methyl-2-oxo-N-(o-tolyl)-1,2-dihydroquinoline-6-sulfonamide (CAS 1418265-85-6)
- 2-Chloro-1-(4-((3,4-dimethoxyphenyl)sulfonyl)piperazin-1-yl)ethan-1-one (CAS 925407-36-9)
- 2-Chloro-1-[4-(2,5-dimethoxybenzenesulfonyl)piperazin-1-yl]ethan-1-one (CAS 717904-71-7)
Recommended Standards
- 4-((4-Chloronaphthalen-1-yl)oxy)-5-methoxy-2-phenylpyrimidine (CAS 478029-74-2)
- 6-Amino-4-(3-chlorophenyl)-3-methyl-1-phenyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (CAS 293329-86-9)
- 6-Amino-4-(4-chlorophenyl)-3-methyl-1-phenyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (CAS 76973-35-8)
- 2-(4-(Benzyloxy)phenyl)-5-(4-chlorophenyl)-1,3,4-oxadiazole (CAS 923029-38-3)
- 2,4-Dichloro-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 2768870-78-4)
- 1-(2,3-Dimethylphenyl)butan-1-ol (CAS 1225605-23-1)
- 2-(2-Hydroxy-3-(phenylsulfonyl)propoxy)benzonitrile (CAS 478079-74-2)
- rac-cis Sertraline (CAS 79617-95-1)
- 2-(4-Chlorophenyl)-3a,4,7,7a-tetrahydro-1H-4,7-epoxyisoindole-1,3(2H)-dione (CAS 43069-79-0)
- O-(tert-Butyldimethylsilyl)-N-Fmoc-L-homoserine (CAS 1333332-17-4)
- [(Anthracen-9-yl)methyl](butyl)amine (CAS 444577-38-2)
- 2-[(2-Chlorobenzyl)amino]benzoic acid (CAS 5363-30-4)
- (4-Cyclohexylpyrimidin-5-yl)boronic acid (CAS 2377609-39-5)
- Serpent Peptide (CAS 823202-99-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com