Valganciclovir Impurity 4 CAS 1401562-16-0
| CAS No. | 1401562-16-0 |
| Molecular Formula | C15H24N6O5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Valganciclovir Impurity 4.
CATO supplies Valganciclovir Impurity 4 (CAS 1401562-16-0), a pharmacopoeial impurity reference standard (molecular formula C15H24N6O5HCl, MW 404.85 g/mol) used for the identification and quantification of trace impurities in APIs.
Valganciclovir Impurity 4 (C15H24N6O5HCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, 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 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 | C15H24N6O5 HCl |
| Molecular Weight | 404.85 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >90% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
Related Valganciclovir Standards
- Valganciclovir EP Impurity O (CAS 119089-68-8)
- Valganciclovir Hydrochloride EP Impurity C (CAS 1202645-50-8)
- Valganciclovir USP RC D (CAS 1219792-42-3（free base）)
- Valganciclovir Impurity 8 (CAS 1356353-76-8)
- Valganciclovir Impurity 3 (CAS 1356847-27-2)
- Valganciclovir Impurity 14 (CAS 1356932-18-7)
- Valganciclovir Impurity 6 (CAS 1356932-88-1)
- Valganciclovir Isomer (CAS 1393911-57-3)
Recommended Standards
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- 6-Isopropyl-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 113123-41-4)
- 2,3-Dichloro-5-nitropyridine (CAS 22353-40-8)
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- 7-fluoro-1-methyl-1H-1,3-benzodiazol-5-ol (CAS 2887612-94-2)
- (2-(6-Bromopyridin-3-yl)piperidin-1-yl)(phenyl)methanone (CAS 1352534-65-6)
- Bonemarrow-Derived Mesenchymal Stem Cells Affinity Peptide trifluoroacetate salt (CAS 683750-83-6)
Why CATO?
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