Valaciclovir EP Impurity C CAS 1346747-65-6
| CAS No. | 1346747-65-6 |
| Molecular Formula | C14H22N6O4 |
| Molecular Weight | 338.36 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 338.36 g/mol gives Valaciclovir EP Impurity C distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Valaciclovir EP Impurity C (CAS 1346747-65-6) is a certified pharmaceutical impurity reference standard with the molecular formula C14H22N6O4 and a molecular weight of 338.36 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Valaciclovir EP Impurity C is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 338.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), Valaciclovir EP Impurity C meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C14H22N6O4 |
| Molecular Weight | 338.36 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >90% |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 6 |
Related Valaciclovir Standards
- Valaciclovir EP Impurity J (CAS 142963-63-1)
- Valaciclovir Impurity 37 (CAS CATO-C4X-124837)
- Valaciclovir Impurity 42 (CAS 73504-31-1)
- Valaciclovir Impurity 36 (CAS 19542-54-2)
- Valaciclovir EP Impurity M (CAS 847670-62-6)
- Valaciclovir EP Impurity R (CAS 142963-59-5)
- Valaciclovir EP Impurity R (CAS 142963-60-8)
- Valaciclovir EP Impurity D (CAS 1346747-69-0)
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Why CATO?
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