布瑞哌唑杂质37 CAS 2019119-44-7
| CAS No. | 2019119-44-7 |
| Molecular Formula | C26H27N3O4S |
| Molecular Weight | 477.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, 布瑞哌唑杂质37 (CAS 2019119-44-7, C26H27N3O4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 布瑞哌唑杂质37 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 477.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), 布瑞哌唑杂质37 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C26H27N3O4S |
| Molecular Weight | 477.58 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- N-(4-acetylphenyl)-3-amino-4-phenyl-6-(p-tolyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 332155-09-6)
- Sildenafil Impurity 289 (CAS CATO-C4X-1128289)
- N-(4-acetylphenyl)-2-((3-cyano-4-phenyl-6-(p-tolyl)pyridin-2-yl)thio)acetamide (CAS 332154-99-1)
- THP-PEG4-Pyrrolidine(N-Boc)-CH2OH (CAS 2378261-80-2)
- Valaciclovir EP Impurity Q (CAS CATO-C4X-124817)
- Avibactam Impurity 72 (CAS CATO-C4X-134872)
- Meloxicam Impurity 16 (CAS 39122-64-0)
- Oseltamivir Impurity 75 (CAS CATO-C4X-172075)
- tert-Butyl (2-amino-3-methylbutyl)carbamate (CAS 1117693-61-4)
- 3-Amino-1-(2-phenylethyl)thiourea (CAS 21198-23-2)
- 2-Bromo-5-(difluoromethyl)-3-(trifluoromethyl)pyridin-4-amine (CAS 1806887-43-3)
- n-(6-Amino-1-butyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-2-chloro-n-(2-methoxyethyl)propanamide (CAS 1050883-98-1)
- 2-Chloro-3-methyl-1,4-dinitrobenzene (CAS 408328-33-6)
- Semaglutide impurity 69 (CAS CATO-C4X-222669)
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