Sulbactam EP Impurity D Potassium Salt CAS 4027-64-9
| CAS No. | 4027-64-9 |
| Molecular Formula | C8H10BrNO3S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
As a process- or degradation-related impurity, Sulbactam EP Impurity D Potassium Salt (CAS 4027-64-9, C8H10BrNO3SK) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Sulbactam EP Impurity D Potassium Salt (C8H10BrNO3SK) contains a salt form, a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 319.23 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C8H10BrNO3S K |
| Molecular Weight | 319.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Sulbactam Standards
- Sulbactam Impurity 15 (CAS 123285-25-6)
- Sulbactam-d5 Sodium Salt (Major) (CAS 1322625-44-4)
- Sulbactam EP Impurity A (CAS 23315-18-6)
- Sulbactam Impurity 17 (CAS 24138-28-1)
- Sulbactam EP Impurity F (CAS 24158-88-1)
- Sulbactam EP Impurity D (CAS 26631-90-3)
- Sulbactam Impurity 22 (CAS 288-35-7)
- Sulbactam Impurity N1 (CAS 4888-97-5)
Recommended Standards
- Posaconazole Impurity 144 (CAS 2243785-81-9)
- Olmesartan Impurity 39 (CAS 2411637-68-6)
- Benserazide EP Impurity B HCl (CAS CATO-C4X-142724)
- 4-Chloro-3,5-Dinitro-Benzamide (CAS 20731-63-9)
- 5-(2,5-Dimethoxybenzylidene)-2-(p-tolyl)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 606951-39-7)
- 2,3-Dichloro-4-(difluoromethoxy)benzonitrile (CAS 1803788-55-7)
- 2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 5-methoxy-3-methylbenzofuran-2-carboxylate (CAS 875156-82-4)
- p-Quinquiphenyl (CAS 3073-05-0)
- 8-amino-3,7-dihydro-1H-purine-2,6-dione (CAS 5461-03-0)
- Semaglutide Impurity 14(Discontinued,See CPTD788307 ) (CAS CATO-C4X-222614)
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 18665070610 / Nicole.chen@cato-chem.com