(1-(4-Chlorophenyl)-3-(3-oxo-3,4-dihydroquinoxalin-2-yl)-1H-pyrazol-5-yl)methyl acetate CAS 66940-28-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 66940-28-1 |
| Molecular Formula | C20H15ClN4O3 |
| Molecular Weight | 394.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (1-(4-Chlorophenyl)-3-(3-oxo-3,4-dihydroquinoxalin-2-yl)-1H-pyrazol-5-yl)methyl acetate (CAS 66940-28-1), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H15ClN4O3. Molecular weight: 394.81 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C20H15ClN4O3 |
| Molecular Weight | 394.81 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.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chlorophenyl Standards
- 2-((3-((3-Chlorophenyl)carbamoyl)phenyl)carbamoyl)benzoic acid (CAS 307338-57-4)
- 5-(4-Chlorophenyl)-4-(furan-2-carbonyl)-3-hydroxy-1-(pyridin-3-ylmethyl)-1H-pyrrol-2(5H)-one (CAS 380906-28-5)
- 5-[(2-Chlorophenyl)methyl]-3-(trifluoromethyl)-5H,6H,6aH,7H,8H,9H,10H-pyrido[1,2-a]quinoxalin-6-one (CAS 1008960-75-5)
- 1-(5-((4-Chlorophenyl)carbamoyl)-1,3,4-thiadiazole-2-carbonyl)piperidine-3-carboxylic acid (CAS 1142210-08-9)
- 6-S-(4-Chlorophenyl)-6-thio-inosine (CAS 132089-81-7)
- 2-((5-(4-Chlorophenyl)-4-methyl-4H-1,2,4-triazol-3-yl)thio)-N-(3,4-difluorophenyl)acetamide (CAS 562832-80-8)
- 1-(1-(2-(4-Chlorophenyl)-2-oxoethyl)piperidin-4-yl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-5-carbonitrile (CAS 1037835-42-9)
- 2-(2-Chlorophenyl)-4-(3-(dimethylamino)phenyl)-5-methyl-1H-pyrazolo[4,3-c]pyridine-3,6(2H,5H)-dione (CAS 1218942-37-0)
Recommended Standards
- Dapagliflozin Impurity 172 (CAS CATO-C4X-1138172)
- 1,4-Diamino-6-chloro-2-(3-methoxyphenoxy)anthracene-9,10-dione (CAS 88605-23-6)
- Empagliflozin impurity 258 (CAS CATO-C4X-1065258)
- (2E)-2-(1-Phenylethylidene)hydrazinecarbothioamide (CAS 132121-93-8)
- 1-(6-Ethoxypyrimidin-4-yl)piperidine-3-carboxylic acid (CAS 1353984-32-3)
- 1,3-Phenylenediethanol (CAS 46133-05-5)
- (3-Methyl-5-(4-methyl-1H-imidazol-1-yl)phenyl)boronic acid (CAS 2225169-69-5)
- 3,3'-(9H,9'H-[3,4'-Bicarbazole]-9,9'-diyl)dibenzonitrile (CAS 1622297-83-9)
- Methyl 4-isopropoxybenzofuran-6-carboxylate (CAS 1291488-37-3)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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 13829788188 / jacky.chen@cato-chem.com