Salbutamol Impurity 45 CAS CATO-C4X-117645
| CAS No. | CATO-C4X-117645 |
| Molecular Formula | C13H21NO2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 337.34 g/mol gives Salbutamol Impurity 45 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Salbutamol Impurity 45 (CAS CATO-C4X-117645) is a certified pharmaceutical impurity reference standard with the molecular formula C13H21NO2C2HF3O2 and a molecular weight of 337.34 g/mol.
Salbutamol Impurity 45 (C13H21NO2C2HF3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Salbutamol Impurity 45 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H21NO2 C2HF3O2 |
| Molecular Weight | 337.34 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; 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 | F-containing |
| Nitrogen Atoms | 1 |
Related Salbutamol Standards
- Salbutamol Impurity 130 (CAS 115061-55-7)
- Salbutamol Impurity 134 (CAS 115787-50-3)
- Salbutamol Impurity 55 (CAS 115787-52-5)
- Salbutamol Impurity 85 (CAS 115787-52-5（free base）)
- Salbutamol Impurity 87 (CAS 115787-53-6)
- Salbutamol-d3 (CAS 1219798-60-3)
- Salbutamol Impurity 75 (CAS 1221726-71-1)
- Salbutamol Impurity 146 (CAS 124658-76-0)
Recommended Standards
- Estazolam Impurity 2 (CAS 719-64-2)
- Oryzanol Impurity 3 (CAS CATO-C4X-28613)
- Sulindac impurity 12 (CAS CATO-C4X-293012)
- O-(Cyclopropylmethyl)hydroxylamine (CAS 75647-90-4)
- 3,5-Dichloro-6-phenyl-1-propylpyrazin-2(1H)-one (CAS 1269529-20-5)
- Methyl 5-chloro-2-hydrazinylbenzoate (CAS 1261105-30-9)
- 1-Ethoxy-3-methyl-2-nitrobenzene (CAS 342044-61-5)
- 2-(7H-Pyrrolo[2,3-d]pyrimidin-4-yl)isoindoline-1,3-dione (CAS 741686-49-7)
- 2-(1-Acetoxyethyl)-3-ethyl-5-methylpyrazine (CAS 1076198-72-5)
- D-[Asp]9-Semaglutide (CAS CATO-CPTD788631)
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