5-Chloro-2-(3,4-dichlorophenyl)-4-(4-methoxyphenoxy)-2,3-dihydropyridazin-3-one CAS 478049-33-1
| CAS No. | 478049-33-1 |
| Molecular Formula | C17H11Cl3N2O3 |
| Molecular Weight | 397.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Chloro-2-(3,4-dichlorophenyl)-4-(4-methoxyphenoxy)-2,3-dihydropyridazin-3-one (CAS 478049-33-1), a certified reference material (molecular formula C17H11Cl3N2O3, MW 397.64 g/mol) for analytical method development and quality control.
5-Chloro-2-(3,4-dichlorophenyl)-4-(4-methoxyphenoxy)-2,3-dihydropyridazin-3-one (C17H11Cl3N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures 5-Chloro-2-(3,4-dichlorophenyl)-4-(4-methoxyphenoxy)-2,3-dihydropyridazin-3-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 | C17H11Cl3N2O3 |
| Molecular Weight | 397.64 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 12.0 |
| 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-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)thio)-2-(2,4-dichlorophenyl)acetonitrile (CAS 477865-19-3)
- 2-Chloro-N-(4-((4,5-dichloro-2-fluorophenyl)amino)quinazolin-6-yl)acetamide (CAS 733009-42-2)
- 2-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]acetaldehyde O-(2,6-dichlorobenzyl)oxime (CAS 303997-72-0)
- 2-chloro-N-(2,4-dichloro-6-methylbenzyl)-4-(trifluoromethyl)nicotinamide (CAS 288246-22-0)
- 6-chloro-N-(2,4-dichloro-6-methylbenzyl)-4-(trifluoromethyl)nicotinamide (CAS 288246-17-3)
- N'-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-N'-methyl-3-(trifluoromethyl)benzohydrazide (CAS 1023540-28-4)
- 2-chloro-N-[4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)phenyl]benzamide (CAS 303126-97-8)
- 2-Chloro-N-[4-(3,4-dichlorophenyl)-1,3-thiazol-2-yl]-2-phenylacetamide (CAS 565191-95-9)
Recommended Standards
- 3-Amino-N-(5-oxo-1-(2,4,6-trichlorophenyl)-4,5-dihydro-1H-pyrazol-3-yl)benzamide (CAS 40567-18-8)
- LDN 57444 (CAS 668467-91-2)
- 3-Amino-N-(5-oxo-1-(2,4,6-trichlorophenyl)-2,5-dihydro-1H-pyrazol-3-yl)benzamide (CAS 939889-30-2)
- N,N'-(2-Benzylbutane-1,4-diyl)dibenzamide (CAS 5342-98-3)
- 4-(((6-Methoxyquinolin-3-yl)methyl)amino)benzenesulfonamide (CAS 62294-85-3)
- 4-(3-(Trifluoromethoxy)phenyl)-1,2,3,6-tetrahydropyridine (CAS 1211874-90-6)
- (R)-2-Aminooctanoic acid (CAS 106819-03-8)
- Ethyl (3-(acridin-9-ylamino)-5-methylphenyl)carbamate (CAS 655238-66-7)
- Bambuterol EP Impurity B (CAS 112935-92-9)
- methyl 2-(methylamino)-2-(1-naphthyl)acetate (CAS 1218342-98-3)
- 3-(Boc-amino)-3-(4-fluorophenyl)-1-propanol (CAS 862466-16-8)
- n-Cyclohexyl-N-phenyl-propanamide (CAS 500548-02-7)
- Diindeno(1,2,3-cd-1',2',3'-lm)perylene (CAS 188-94-3)
- Peptide Fmoc-Thi-Thi-OH (CAS CATO-CPTD788552)
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