5-(4-Chlorophenyl)-2,3-dihydro-6,7-dimethyl-2-oxo-1H-thieno[2,3-e]-1,4-diazepine-3S-acetic acid-1,1- CAS 1268524-67-9
| CAS No. | 1268524-67-9 |
| Molecular Formula | C21H23ClN2O3S |
| Molecular Weight | 418.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 5-(4-Chlorophenyl)-2,3-dihydro-6,7-dimethyl-2-oxo-1H-thieno[2,3-e]-1,4-diazepine-3S-acetic acid-1,1- is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 418.94 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
5-(4-Chlorophenyl)-2,3-dihydro-6,7-dimethyl-2-oxo-1H-thieno[2,3-e]-1,4-diazepine-3S-acetic acid-1,1- (CAS 1268524-67-9) is a high-purity analytical reference standard with the molecular formula C21H23ClN2O3S and a molecular weight of 418.94 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 5-(4-Chlorophenyl)-2,3-dihydro-6,7-dimethyl-2-oxo-1H-thieno[2,3-e]-1,4-diazepine-3S-acetic acid-1,1- 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 | C21H23ClN2O3S |
| Molecular Weight | 418.94 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- tert-Butyl 4-[6-(5-chlorothiophen-2-yl)-3-cyanopyridin-2-yl]-1,4-diazepane-1-carboxylate (CAS 1198278-10-2)
- (4-Chloro-3-(piperidin-1-ylsulfonyl)phenyl)(3,4-dihydroquinolin-1(2H)-yl)methanone (CAS 560998-40-5)
- 2-(2-(Tritylamino)thiazol-4-yl)acetyl chloride (CAS 115385-02-9)
- 8-Bromo-3-iodo-2-(trifluoromethyl)-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 2648773-61-7)
- tert-Butyl 4-(4-methoxy-2,4-dioxobutyl)piperidine-1-carboxylate (CAS 1014679-82-3)
- 2-Ethoxy-N-(2-methylpyrazolo[1,5-a]pyrimidin-6-yl)benzamide (CAS 1798637-33-8)
- 2-(((4H-1,2,4-triazol-4-yl)amino)methyl)-6-methoxyphenol (CAS 731832-87-4)
- 2-Nonadecanol (CAS 26533-36-8)
- (3-(7-((Tert-butyldiphenylsilyl)oxy)heptyl)aziridin-2-yl)methanol (CAS 1980035-51-5)
- (2-Chloro-3-(difluoromethyl)-6-fluoropyridin-4-yl)methanol (CAS 1806978-22-2)
- 4-(2,6-Dichlorophenyl)piperidine hydrochloride (CAS 371981-23-6)
- 3-(3,5-Difluorophenyl)isoxazolidine (CAS 2360950-32-7)
- Ethyl 5-bromo-6-methoxypicolinate (CAS 1214337-82-2)
- Semaglutide Impurity 8 (CAS CATO-C4X-22268)
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