Valaciclovir Impurity 45 CAS CATO-C4X-124845
| CAS No. | CATO-C4X-124845 |
| Molecular Formula | C34H41N7O9 |
| Molecular Weight | 691.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Valaciclovir Impurity 45 (CAS CATO-C4X-124845) is a certified pharmaceutical impurity reference standard with the molecular formula C34H41N7O9 and a molecular weight of 691.73 g/mol.
The molecular framework of Valaciclovir Impurity 45 (C34H41N7O9) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), Valaciclovir Impurity 45 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 | C34H41N7O9 |
| Molecular Weight | 691.73 g/mol |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
Related Valaciclovir Standards
- Valaciclovir Impurity 39 (CAS CATO-C4X-124839)
- Valaciclovir EP Impurity P(Valaciclovir Related Compound K) (CAS 1356019-51-6)
- Valaciclovir Impurity 57 (CAS CATO-C4X-124857)
- Valaciclovir EP Impurity O (CAS CATO-C4X-124819)
- Valaciclovir Impurity 56 (CAS CATO-C4X-124856)
- Valaciclovir EP Impurity Q (CAS CATO-C4X-124817)
- Valaciclovir EP Impurity N (CAS 2519847-26-6)
- Valaciclovir Impurity 40 (CAS CATO-C4X-124840)
Recommended Standards
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- Risedronate EP Impurity A (CAS 1486617-90-6)
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