Levalbuterol Impurity 3 CAS CATO-C4X-22593
| CAS No. | CATO-C4X-22593 |
| Molecular Formula | C18H27NO4 |
| Molecular Weight | 321.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Levalbuterol Impurity 3 is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Levalbuterol Impurity 3 (CAS CATO-C4X-22593) is a certified pharmaceutical impurity reference standard with the molecular formula C18H27NO4 and a molecular weight of 321.41 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Levalbuterol Impurity 3 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 321.41 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.
As a certified reference material (CRM), Levalbuterol Impurity 3 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 | C18H27NO4 |
| Molecular Weight | 321.41 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Levalbuterol Standards
Recommended Standards
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- Boc-Cys(Bzl)-OH (CAS 5068-28-0)
- Cariprazine Impurity 33 (CAS CATO-C4X-240833)
- Diethyl 2,2,3,3-tetrafluorosuccinate (CAS 377-71-9)
- 4-(3-(Benzyloxy)benzylidene)-2-phenyloxazol-5(4H)-one (CAS 113697-04-4)
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