Valganciclovir EP Impurity P Isomer CAS CATO-C4X-177429
| CAS No. | CATO-C4X-177429 |
| Molecular Formula | C19H31N7O6 |
| Molecular Weight | 453.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Valganciclovir EP Impurity P Isomer (CAS CATO-C4X-177429) is a certified pharmaceutical impurity reference standard with the molecular formula C19H31N7O6 and a molecular weight of 453.49 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Valganciclovir EP Impurity P Isomer is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 453.49 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a certified reference material (CRM), Valganciclovir EP Impurity P Isomer 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 | C19H31N7O6 |
| Molecular Weight | 453.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
Related Valganciclovir Standards
- Valganciclovir N-Valyl Impurity (CAS 897937-73-4)
- Valganciclovir EP Impurity Q (CAS CATO-C4X-177420)
- Valganciclovir EP Impurity P (CAS CATO-C4X-177428)
- Valganciclovir EP Impurity Q Isomer (CAS CATO-C4X-177430)
- Valganciclovir N-benzyloxycarbonyl Impurity (CAS 194154-40-0)
- Valganciclovir Hydrochloride Bis Impurity (CAS CATO-C4X-177417)
- Valganciclovir Impurity 32 (CAS 960582-59-6)
- Valganciclovir Impurity 6 (CAS 1356932-88-1)
Recommended Standards
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- Dicyclopropafenedine (CAS 2943075-87-2)
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- Bosutinib Impurity 35 (CAS CATO-C4X-184735)
- Venlafaxine Impurity 75 (CAS 2450358-09-3 (free base))
- Tacrolimus EP Impurity H (CAS 143210-33-7)
- 2-(tert-Butoxy)-3-cyclopropoxy-6-isopropoxypyridine (CAS 1243391-51-6)
- Alogliptin Impurity 16 (CAS 1217476-03-3)
- 2-(4-(3-Butyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)phenyl)acetic acid (CAS 90614-56-5)
- 9H-Xanthene-9-carbonyl chloride (CAS 26454-53-5)
- N-(3-chloro-4,5-dimethoxybenzyl)ethanamine (CAS 893582-40-6)
- 4-(Ethylsulfonyl)-3-(4-methoxyphenyl)-1H-pyrazole (CAS 1708485-90-8)
- (Des-His1,Glu?)-Glucagon (1-29) amide (human, rat, porcine) (CAS 110084-95-2)
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