2-(4-Chlorophenyl)-5-ethoxy-4-(((4-hydroxyphenyl)imino)methyl)-1,2-dihydro-3H-pyrazol-3-one CAS 338751-23-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 338751-23-8 |
| Molecular Formula | C18H16ClN3O3 |
| Molecular Weight | 357.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(4-Chlorophenyl)-5-ethoxy-4-(((4-hydroxyphenyl)imino)methyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 338751-23-8) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C18H16ClN3O3. Molecular weight: 357.79 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C18H16ClN3O3 |
| Molecular Weight | 357.79 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 | 3 |
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- Methyl 1-[(3-chlorophenyl)methyl]-2-ethyl-5-methoxy-1H-indole-3-carboxylate (CAS 1092345-30-6)
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Recommended Standards
- 2-(4-Chloro-2-methylphenoxy)-N'-[(3E)-1-methyl-2-oxo-2,3-dihydro-1H-indol-3-ylidene]acetohydrazide (CAS 330567-03-8)
- 2-(5-Chloro-1-(ethoxycarbonyl)-3-phenyl-2H-isoindol-2-yl)acetic acid (CAS 61295-12-3)
- 2-(4-(Tert-butyl)phenyl)-5-(2-chloro-5-nitrophenyl)-1,3,4-oxadiazole (CAS 243644-28-2)
- 4-Phenylmorpholine-2,3-Dione (CAS 32816-99-2)
- 1-(4-Morpholinyl)cyclohexanecarbonitrile, 97% (CAS 42419-59-0)
- 2-Chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamide (CAS 1218791-12-8)
- 368-43-4 Phenylsulfonylfluoride Benzenesulfonyl fluoride Benzenesulphonyl fluoride 4-11-00-00049 (Beilstein Handbook Reference) BRN 2206835 EINECS 206-707-2 NSC 8543 Phenylsulfonyl fluoride (CAS 368-43-4)
- 2-(4-Chloro-2-(difluoromethyl)-6-hydroxypyridin-3-yl)acetonitrile (CAS 1804855-05-7)
- Edoxaban N-Oxide Monomer Impurity 2 (CAS 1974272-84-8)
- Semaglutide impurity 68 (CAS CATO-C4X-222668)
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