4-Chloro-2-(4-methoxyphenyl)-5-{[2-(pyridin-2-yl)ethyl]amino}-2,3-dihydropyridazin-3-one CAS 477867-44-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 477867-44-0 |
| Molecular Formula | C18H17ClN4O2 |
| Molecular Weight | 356.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-2-(4-methoxyphenyl)-5-{[2-(pyridin-2-yl)ethyl]amino}-2,3-dihydropyridazin-3-one (CAS 477867-44-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H17ClN4O2. Molecular weight: 356.81 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H17ClN4O2 |
| Molecular Weight | 356.81 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 9-(4-Chloro-6-phenyl-1,3,5-triazin-2-yl)-9H-carbazole (CAS 1268244-56-9)
- 7-Chloro-5-methyl-2-(2-(1-methyl-1H-benzo[d]imidazol-2-yl)ethyl)-2,3-dihydro-1H-pyrrolo[3,4-c]pyridine-1,6(5H)-dione (CAS 1628618-37-0)
- (R)-7-chloro-6-methoxy-4-((1-(pyridin-2-yl)ethyl)amino)quinoline-3-carboxamide (CAS 2444608-43-7)
- Ethyl 3-((5-chloro-8-methoxyquinolin-4-yl)amino)benzoate (CAS 1315343-45-3)
- Ethyl 4-((5-chloro-8-methoxyquinolin-4-yl)amino)benzoate (CAS 1315352-15-8)
- 2-(4-Chloro-2-(1-phenyl-1H-pyrazol-5-yl)phenoxy)ethyl acetate (CAS 141355-87-5)
- 5-Chloro-2-(2,3-dimethylphenyl)-4-(4-methoxyphenoxy)pyridazin-3(2H)-one (CAS 478049-36-4)
- 5-Chloro-N-ethyl-4-hydroxy-1-methyl-2-oxo-N-phenyl-1,2-dihydroquinoline-3-carboxamide (CAS 248281-84-7)
Recommended Standards
- 3-Amino-N-(1-(2-chloro-4,6-dimethylphenyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl)benzamide (CAS 88372-24-1)
- 7-(((3-Amino-1,2,4-thiadiazol-5-yl)sulfonyl)methyl)-5-chloroquinolin-8-ol (CAS 922505-49-5)
- 2-((5-(5-Chlorothiophen-2-yl)-1,3,4-oxadiazol-2-yl)thio)-N-(5-methylisoxazol-3-yl)acetamide (CAS 850937-46-1)
- (E)-9,9-dimethyl-1-oxa-2-azaspiro[4.5]Dec-2-en-7-one oxime (CAS 128475-86-5)
- N-(1-(2,5-Dichlorophenyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl)acetamide (CAS 87820-16-4)
- 4-(Methylthio)-2-(1-oxoisoindolin-2-yl)butanoic acid (CAS 835895-78-8)
- 4-[2-(2-Methoxyphenoxy)ethoxy]aniline (CAS 879074-91-6)
- 1-Bromo-5-fluoro-2-iodo-3-methoxybenzene (CAS 1935372-87-4)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-(pyrrolidin-1-yl)thiophen-2-yl)boronate (CAS 2223049-91-8)
- (Des-Bromo)-Neuropeptide B (1-23) (human) (CAS 434897-64-0)
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 13829788188 / jacky.chen@cato-chem.com