Nalmefene Impurity 27 CAS CATO-C4X-126827
| CAS No. | CATO-C4X-126827 |
| Molecular Formula | C21H25NO3 |
| Molecular Weight | 339.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Nalmefene Impurity 27 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.
Nalmefene Impurity 27 (CAS CATO-C4X-126827) is a certified pharmaceutical impurity reference standard with the molecular formula C21H25NO3 and a molecular weight of 339.43 g/mol.
Based on its molecular formula C21H25NO3, Nalmefene Impurity 27 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 339.43 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.
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 | C21H25NO3 |
| Molecular Weight | 339.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at 2-8°C, 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Nalmefene Standards
- Nalmefene impurity 20 (CAS 738552-29-9)
- Nalmefene Impurity 5 (CAS CATO-C4X-12685)
- Nalmefene (CAS 55096-26-9)
- Nalmefene Impurity 22 (CAS CATO-C4X-126822)
- Nalmefene Impurity 28 (CAS CATO-C4X-126828)
- Nalmefene Impurity 9 (CAS CATO-C4X-12689)
- Nalmefene Impurity N5 (CAS 91598-83-3)
- Nalmefene Impurity 14 (CAS CATO-C4X-126814)
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