Sulbactam Impurity 13 CAS CATO-C4X-175613
| CAS No. | CATO-C4X-175613 |
| Molecular Formula | C8H9Br2NO4S |
| Molecular Weight | 375.03 g/mol |
| 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.
Sulbactam Impurity 13 (CAS CATO-C4X-175613) is a certified pharmaceutical impurity reference standard with the molecular formula C8H9Br2NO4S and a molecular weight of 375.03 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution, Sulbactam Impurity 13 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 375.03 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.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C8H9Br2NO4S |
| Molecular Weight | 375.03 g/mol |
| Purity | >95% |
| 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 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Sulbactam Standards
- Sulbactam EP Impurity E (CAS 76646-91-8)
- Sulbactam EP Impurity F (CAS 24158-88-1)
- Sulbactam Impurity 19 (CAS CATO-C4X-175619)
- Sulbactam Pivoxil (CAS 69388-79-0)
- Sulbactam Impurity 33 (CAS CATO-C4X-175633)
- Sulbactam Impurity 36 (CAS CATO-C4X-175636)
- Sulbactam Impurity 20 (CAS 75527-88-7)
- Sulbactam EP Impurity C (CAS 75527-87-6)
Recommended Standards
- 2,4-Dibromo-6-{[(4-fluorophenyl)amino]methyl}phenol (CAS 477871-79-7)
- 2-Amino-5-bromo-4-chloro-N-(4-chlorobenzyl)nicotinamide (CAS 1956334-22-7)
- 3-((6,8-Dibromoquinazolin-4-yl)amino)propanoic acid (CAS 886500-14-7)
- Di-n-butyl diacrylatetin (CAS 21843-46-9)
- Bromfenac Impurity 64 (CAS 91713-90-5)
- Furosemide Impurity 48 Sodium Salt (CAS 133989-65-8（free base）)
- Erythromycin Impurity 13 (CAS 58781-38-7)
- 6-Methyloctahydropyrrolo[1,2-a]pyrazine dihydrochloride (CAS 22177-06-6)
- 4-(2,5-Dimethylphenyl)-4-oxobutanoic acid (CAS 5394-59-2)
- Ethyl 4-(4-chlorophenyl)-2-[(cyanoacetyl)amino]-thiophene-3-carboxylate (CAS 547706-71-8)
- 3-Amino-3-(trifluoromethyl)cyclobutane-1-carboxylic acid (CAS 1240529-38-7)
- 2-((3-Cyano-4,6-diphenylpyridin-2-yl)thio)-N-(4-phenylthiazol-2-yl)acetamide (CAS 332859-73-1)
- (2-(2-(Dimethylamino)ethoxy)pyridin-4-yl)boronic acid (CAS 1189546-04-0)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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