Propranolol Impurity 51 CAS CATO-C4X-151951
| CAS No. | CATO-C4X-151951 |
| Molecular Formula | C13H13ClO2 |
| Molecular Weight | 236.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C13H13ClO2, Propranolol Impurity 51 contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 236.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Propranolol Impurity 51 (CAS CATO-C4X-151951) is a certified pharmaceutical impurity reference standard with the molecular formula C13H13ClO2 and a molecular weight of 236.69 g/mol.
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.
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 | C13H13ClO2 |
| Molecular Weight | 236.69 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Propranolol Standards
- Propranolol Chloro Impurity (CAS 112805-69-3)
- Propranolol Impurity 5 (CAS 132005-35-7)
- Propranolol Impurity 24 (CAS 20133-94-2)
- Propranolol Impurity 57 (CAS CATO-C4X-151957)
- Propranolol Impurity 6 (CAS 20133-93-1)
- Propranolol impurity 44 (CAS CATO-C4X-151944)
- Propranolol impurity 45 (CAS CATO-C4X-151945)
- Propranolol impurity 46 (CAS CATO-C4X-151946)
Recommended Standards
- Rosuvastatin Impurity 140 (CAS 154026-92-3)
- Rosuvastatin Impurity 59 (CAS 404958-08-3)
- 5-Chloro-7-((dimethylamino)methyl)quinolin-8-ol (CAS 100119-17-3)
- ethyl 5-chloro-1H,1aH,6H,6aH-cyclopropa[a]indene-1-carboxylate (CAS 2044796-16-7)
- Omarigliptin Impurity 13 (CAS 1443380-88-8)
- Tadalafil Impurity 59 (CAS CATO-C4X-108759)
- Dotinurad Impurity 173 (CAS CATO-C4X-2494173)
- 2-(Methyl((3-(methylthio)pyrazin-2-yl)methyl)amino)ethanol (CAS 1353978-65-0)
- 2-(2-Methoxyphenyl)-2-(1-pyrrolidinyl)ethylamine (CAS 791079-95-3)
- 1-Butoxy-2,5-difluoro-4-nitrobenzene (CAS 1881288-17-0)
- Fosamprenavir Calcium Salt (CAS 226700-81-8)
- 1-Ethyl-2,3-dimethyl-1H-imidazol-3-ium methyl carbonate (CAS 625120-68-5)
- Ethyl N-(tert-butoxycarbonyl)-N-((1S,2R)-2-hydroxy-1,2-diphenylethyl)glycinate (CAS 112741-70-5)
- Semaglutide impurity 109 (CAS CATO-C4X-2226109)
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