Valganciclovir N-Valyl Impurity CAS 897937-73-4
| CAS No. | 897937-73-4 |
| Molecular Formula | C19H31N7O6 |
| Molecular Weight | 453.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Valganciclovir N-Valyl Impurity 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.
Valganciclovir N-Valyl Impurity (CAS 897937-73-4), molecular formula C19H31N7O6 and molecular weight 453.49 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Valganciclovir N-Valyl Impurity 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).
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 | 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 |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 7 |
Related Valganciclovir Standards
- Valganciclovir EP Impurity Q (CAS CATO-C4X-177420)
- Valganciclovir EP Impurity P (CAS CATO-C4X-177428)
- Valganciclovir EP Impurity P Isomer (CAS CATO-C4X-177429)
- 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
- Belumosudil Impurity N1 (CAS 911417-26-0)
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- CY3.5 (CAS 1284240-77-2)
- 1-((4-Bromophenoxy)methyl)-3,5-dimethyl-4-nitro-1h-pyrazole (CAS 1001519-06-7)
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- 3-(6-chloropyridin-3-yl)prop-2-enoic acid (CAS 1198101-53-9)
- 1-Bromo-4-cyclohexylbenzene (CAS 25109-28-8)
- Potassium Trifluoro(4-isoquinolinyl)borate (CAS 1111733-07-3)
- 3-(morpholin-4-yl)propanal (CAS 19851-01-5)
- [(1R,3r)-3-amino-1-phenylcyclobutyl]methanol hydrochloride (CAS 2126144-63-4)
- N-Benzyl-N-methylacetamide (CAS 29823-47-0)
- Semaglutide Impurity 18 (CAS 1671100-14-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com