Fingolimod Impurity 13 CAS 162358-08-9
| CAS No. | 162358-08-9 |
| Molecular Formula | C25H39NO5 |
| Molecular Weight | 433.58 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 433.58 g/mol gives Fingolimod Impurity 13 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Fingolimod Impurity 13 (CAS 162358-08-9) is a certified pharmaceutical impurity reference standard with the molecular formula C25H39NO5 and a molecular weight of 433.58 g/mol.
Fingolimod Impurity 13 (C25H39NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. 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).
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 | C25H39NO5 |
| Molecular Weight | 433.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Nitrogen Atoms | 1 |
Related Fingolimod Standards
- Fingolimod EP Impurity H (CAS 162358-09-0)
- Fingolimod impurity 25 (CAS CATO-C4X-164625)
- Fingolimod impurity 26 (CAS 268557-49-9)
- (R)-Fingolimod O-Phosphate (CAS 402616-23-3)
- Fingolimod Impurity 30 (CAS CATO-C4X-164630)
- Fingolimod impurity 31 (CAS CATO-C4X-164631)
- Fingolimod Phosphate (CAS 402615-91-2)
- Fingolimod impurity 24 (CAS CATO-C4X-164624)
Recommended Standards
- Ulipristal Impurity 16 (CAS 159811-51-5)
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- Ebastine Impurity 14 (CAS CATO-C4X-202914)
- (1S)-2′-[[Bis(1-methylethyl)amino]carbonyl]-5,5′,6,6′,7,7′,8,8′-octahydro[1,1′-binaphthalene]-2-carboxylic acid (CAS 2646622-03-7)
- (E)-Ramelteon Impurity 11 (CAS 196597-61-2)
- Belumosudil Impurity 22 (CAS CATO-C4X-298822)
- Tenofovir disoproxil Impurity 141 (CAS CATO-C4X-1076141)
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- Fmoc-p-nitro-Phe-OH (CAS 95753-55-2)
- 5-(2-(Methylthio)phenyl)-1,2,4-oxadiazole-3-carboxylic acid (CAS 1502039-45-3)
- Anti-TF Antigen Peptide P30-1 trifluoroacetate salt (CAS 573664-50-3)
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