Salmeterol Impurity 24 CAS CATO-C4X-105024
| CAS No. | CATO-C4X-105024 |
| Molecular Formula | C31H39NO3 |
| Molecular Weight | 473.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 473.65 g/mol gives Salmeterol Impurity 24 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Salmeterol Impurity 24 (CAS CATO-C4X-105024) is a certified pharmaceutical impurity reference standard with the molecular formula C31H39NO3 and a molecular weight of 473.65 g/mol.
Salmeterol Impurity 24 (C31H39NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C31H39NO3 |
| Molecular Weight | 473.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Salmeterol Standards
- Salmeterol Impurity 26 (CAS CATO-C4X-105026)
- Salmeterol Impurity 10 (CAS CATO-C4X-105010)
- Salmeterol impurity 22 (CAS CATO-C4X-105022)
- Salmeterol Impurity 15 (CAS 1995868-17-1)
- Salmeterol-d3 (CAS 497063-94-2)
- Salmeterol EP Impurity E (CAS 108928-81-0)
- SalMeterol (CAS 89365-50-4)
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Recommended Standards
- CAS 2132345-14-1 (CAS 2132345-14-1)
- 2,4,6-Tris(3,4,5-trifluorophenyl)-1,3,5,2,4,6-trioxatriborinane (CAS 223440-94-6)
- CAS 2132345-13-0 (CAS 2132345-13-0)
- 1,2,3-Propanetriol tris(octanoate-1-13C) 65402-55-3 Glyceryl tri(octanoate-1-13C) Trioctanoin-carboxyls-13C3 (CAS 65402-55-3)
- Oseltamivir Impurity 86 (CAS 651324-08-2)
- Peramivir Impurity N1 (CAS 229613-93-8)
- Alanyl Glutamine Impurity 28 (CAS CATO-C4X-197428)
- 4-chloropyrrolo[2,1-f][1,2,4]triazine-5-carbaldehyde (CAS 859854-70-9)
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- Rac-(1r,2r)-2-(4-nitrophenyl)cyclopropane-1-carboxylic acid, trans (CAS 16633-46-8)
- Valosin Peptide (VQY), porcine (CAS 99510-37-9)
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