Salbutamol Impurity 118 CAS 174607-70-6
| CAS No. | 174607-70-6 |
| Molecular Formula | C21H27NO4 |
| Molecular Weight | 357.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Salbutamol Impurity 118 (CAS 174607-70-6, C21H27NO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Salbutamol Impurity 118 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 357.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C21H27NO4 |
| Molecular Weight | 357.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2006 |
| Nitrogen Atoms | 1 |
Related Salbutamol Standards
- Salbutamol Impurity 105 (CAS CATO-C4X-1176105)
- Salbutamol Impurity 188 (CAS CATO-C4X-1176188)
- Salbutamol Impurity 109 (CAS CATO-C4X-1176109)
- Salbutamol Impurity 110 (CAS 345322-10-3)
- Salbutamol Impurity 98 (CAS CATO-C4X-117698)
- Salbutamol Impurity 57 (CAS CATO-C4X-1176157)
- Salbutamol Impurity 135 (CAS CATO-C4X-1176135)
- Salbutamol Impurity 136 (CAS CATO-C4X-1176136)
Recommended Standards
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