Valaciclovir Impurity 1 CAS 142963-69-7
| CAS No. | 142963-69-7 |
| Molecular Formula | C14H22N6O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Valaciclovir Impurity 1 (CAS 142963-69-7), molecular formula C14H22N6O4HCl and molecular weight 374.83 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Valaciclovir Impurity 1 (C14H22N6O4HCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 374.83 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C14H22N6O4 HCl |
| Molecular Weight | 374.83 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
Related Valaciclovir Standards
- Valaciclovir EP Impurity I (CAS 102728-64-3)
- Valaciclovir EP Impurity G (CAS 1122-58-3)
- Valaciclovir EP Impurity E (CAS 124832-31-1)
- Valaciclovir EP Impurity E Enantiomer (Valacyclovir USP Related Compound E Enantiomer) (CAS 124832-32-2)
- Valaciclovir EP Impurity C(hydrochloride) (CAS 1346617-39-7)
- Valaciclovir EP Impurity D(hydrochloride) (CAS 1346617-49-9)
- Valaciclovir EP Impurity C (CAS 1346747-65-6)
- Valaciclovir EP Impurity D (CAS 1346747-69-0)
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