Salbutamol Impurity 147 CAS 62423-71-6
| CAS No. | 62423-71-6 |
| Molecular Formula | C9H7BrO4 |
| Molecular Weight | 259.05 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.
As a process- or degradation-related impurity, Salbutamol Impurity 147 (CAS 62423-71-6, C9H7BrO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C9H7BrO4, Salbutamol Impurity 147 contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 259.05 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).
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 | C9H7BrO4 |
| Molecular Weight | 259.05 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, keep tightly closed to prevent evaporation |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Br-containing |
Related Salbutamol Standards
- Salbutamol Impurity 113 (CAS CATO-C4X-1176113)
- Salbutamol Impurity 122 (CAS CATO-C4X-1176122)
- Salbutamol Impurity 80 (CAS 41104-10-3)
- Salbutamol Impurity 70 (CAS CATO-C4X-117670)
- Salbutamol Impurity 97 (CAS 53942-75-9)
- Salbutamol Impurity 156 (CAS CATO-C4X-1176156)
- Salbutamol Impurity 81 (CAS CATO-C4X-1176181)
- Salbutamol Impurity 129 (CAS 18910-69-5)
Recommended Standards
- Methyl 6-bromobenzo[d][1,3]dioxole-5-carboxylate (CAS 61441-09-6)
- Benzamide, 3-bromo-4-methyl-5-nitro- (CAS 1000343-37-2)
- Methyl 6-bromobenzo[d][1,3]dioxole-4-carboxylate (CAS 33842-18-1)
- 7-Bromo-5-nitro-3,4-dihydro-2H-benzo[b][1,4]oxazine (CAS 1003707-40-1)
- Linezolid Impurity 59 (CAS 54798-73-1)
- Azithromycin EP Impurity A (CAS 76801-85-9)
- Roxatidine Impurity 51 (CAS CATO-C4X-121351)
- Ethyl 2-cyclopropyl-4-methyl-1,3-oxazole-5-carboxylate (CAS 1030014-04-0)
- Adefovir Impurity 31 (CAS CATO-C4X-115231)
- Mirabegron Impurity 91 (CAS 3032026-53-9)
- Atrasentan Impurity 100 (CAS 1059043-95-6)
- 5-Doxyl Stearic Acid, free radical (CAS 29545-48-0)
- 1,2-Cyclohexanedicarboxylic acid, 1,2-bis(2-oxiranylmethyl) ester, polymer with 1,6-diisocyanatohexane and 2-propenoic acid (CAS 79372-58-0)
- Peptide YY (3-36) (canine, mouse, porcine, rat) trifluoroacetate salt (CAS 126339-09-1)
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