Carteolol Impurity 40 CAS CATO-C4X-228740
| CAS No. | CATO-C4X-228740 |
| Molecular Formula | C16H23ClN2O2 |
| Molecular Weight | 310.82 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Carteolol Impurity 40 (CAS CATO-C4X-228740) is a certified pharmaceutical impurity reference standard with the molecular formula C16H23ClN2O2 and a molecular weight of 310.82 g/mol.
Carteolol Impurity 40 (C16H23ClN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C16H23ClN2O2 |
| Molecular Weight | 310.82 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | ≥95% |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Carteolol Standards
- Carteolol Impurity 38 (CAS CATO-C4X-228738)
- Carteolol Impurity 32 (CAS CATO-C4X-228732)
- Carteolol Impurity 34 (CAS CATO-C4X-228734)
- Carteolol Impurity 35 (CAS CATO-C4X-228735)
- Carteolol impurity 36 (CAS CATO-C4X-228736)
- Carteolol Impurity 15 (CAS CATO-C4X-228715)
- Carteolol Impurity 17 (CAS 51781-06-7)
- Carteolol EP Impurity H (CAS 62330-84-1)
Recommended Standards
- Desloratadine Impurity 21 (CAS 1346600-61-0)
- 8-Dechloro-9-chloro Desloratadine (CAS 117811-13-9)
- Desloratadine EP Impurity B (CAS 183198-49-4)
- Desloratadine Impurity N3 (CAS 1346601-53-3)
- Isepamicin Impurity 2 (CAS 328072-92-0)
- Imrecoxib Impurity 49 (CAS CATO-C4X-237949)
- Ornidazole Impurity 56 (CAS CATO-C4X-133156)
- 6-Methyl-4-oxo-4H-pyran-2-carboxylic acid (CAS 14255-39-1)
- Methyl 4-hydroxy-1-methylpiperidine-4-carboxylate hydrochloride (CAS 1992939-83-9)
- 4,5-Dimethyl-2-(1h-pyrrol-1-yl)thiophene-3-carboxylic acid (CAS 26176-19-2)
- Isavuconazole Impurity 182 (CAS CATO-C4X-1236182)
- 5-bromo-4-chloro-2-iodobenzoic acid (CAS 1539228-96-0)
- Fmoc-(r)-3-amino-3-phenylpropionic acid (CAS 220498-02-2)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
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