(4Z)-1-(4-Chlorophenyl)-3-ethoxy-4-({[(pyridin-3-yl)methyl]amino}methylidene)-4,5-dihydro-1H-pyrazol-5-one CAS 338751-19-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 338751-19-2 |
| Molecular Formula | C18H17ClN4O2 |
| Molecular Weight | 356.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity (4Z)-1-(4-Chlorophenyl)-3-ethoxy-4-({[(pyridin-3-yl)methyl]amino}methylidene)-4,5-dihydro-1H-pyrazol-5-one (CAS 338751-19-2) pharmaceutical standards reference standard. Molecular formula: C18H17ClN4O2. Molecular weight: 356.81 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
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 Z Standards
- 1-(3-Chlorophenyl)-3-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)urea (CAS 325850-26-8)
- 1-(4-Chlorophenyl)-3-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)urea (CAS 59440-79-8)
- 2-((4-(2-(2-Chlorophenyl)acetamido)but-2-yn-1-yl)oxy)benzamide (CAS 1421442-94-5)
- (E)-3-(5-(4-chlorophenyl)furan-2-yl)-2-cyano-N-((tetrahydrofuran-2-yl)methyl)acrylamide (CAS 444764-47-0)
- 4-(4-Chlorophenyl)-3-phenylisoxazolo[4,5-c]quinoline (CAS 253433-32-8)
- Ethyl 2-{3-[(4-chlorophenyl)methyl]-4-oxo-3,4-dihydrophthalazin-1-yl}acetate (CAS 866151-32-8)
- Ethyl 4-(4-chlorophenyl)-6-hydroxy-2-phenyl-4,5-dihydropyrimidine-5-carboxylate (CAS 400078-28-6)
- N-(2-chlorophenyl)-2-((4-fluorophenyl)sulfonamido)propanamide (CAS 317378-04-4)
Recommended Standards
- 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)
- benzyl (2S)-2-{8-chloroimidazo[1,5-a]pyrazin-3-yl}pyrrolidine-1-carboxylate (CAS 1418307-18-2)
- (3-Fluoropyrrolidin-2-yl)methanol (CAS 1423029-26-8)
- Tert-butyl n-[(1-amino-2-methylcyclohexyl)methyl]carbamate (CAS 1269152-52-4)
- Emtricitabine Impurity 31 (CAS 151722-06-4)
- Lesinurad Impurity 1 (CAS 1533519-98-0)
- 4-(2,4-Dichlorophenyl)-5-[(Z)-2-phenyldiazen-1-yl]-2-(pyridin-3-yl)pyrimidine (CAS 338747-39-0)
- Methyl 3-amino-2,4-dimethylbenzoate (CAS 24812-89-3)
- Semaglutide impurity 331 (CAS CATO-C4X-2226231)
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