N-Nitroso Valaciclovir EP Impurity C CAS CATO-C4X-124849
| CAS No. | CATO-C4X-124849 |
| Molecular Formula | C14H21N7O5 |
| Molecular Weight | 367.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), N-Nitroso 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.
CATO supplies N-Nitroso Valaciclovir EP Impurity C (CAS CATO-C4X-124849), a pharmacopoeial impurity reference standard (molecular formula C14H21N7O5, MW 367.36 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, N-Nitroso Valaciclovir EP Impurity C is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 367.36 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 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.
Physical & Chemical Properties
| Molecular Formula | C14H21N7O5 |
| Molecular Weight | 367.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
Related N Standards
- N-Nitroso Linezolid Impurity 102 (CAS CATO-C4X-1073102)
- N-Nitroso Ufenamate (CAS CATO-C4X-30691)
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Recommended Standards
- Ganciclovir EP Impurity I (CAS 86357-20-2)
- Roxadustat impurity 134 (CAS 2243807-81-8)
- 2422-91-5 Benzene, 1,1',1''-methylidynetris(4-isocyanato- Methylidynetri-p-phenylene triisocyanate EINECS 219-351-8 EC 219-351-8 (CAS 2422-91-5)
- Ac-Trp-ONp (CAS 14009-92-8)
- Cilostazol Impurity 13 (CAS 22716-03-6)
- Procaterol Impurity 5 (CAS CATO-C4X-18105)
- Cabozantinib Impurity 52 (CAS CATO-C4X-201852)
- 2-(2-{[5-(4-tert-butylphenyl)-1,3,4-oxadiazol-2-yl]sulfanyl}ethyl)-2,3-dihydro-1H-isoindole-1,3-dione (CAS 477857-45-7)
- (5-((2,6-Dichlorophenyl)thio)-1-methyl-3-phenyl-1H-pyrazol-4-yl)methanol (CAS 318248-40-7)
- 4-Amino-1-(2-fluoroethyl)-1H-pyrazole-5-carboxylic acid (CAS 1429419-54-4)
- 5-Bromo-3-fluoro-2-(methylthio)pyridine (CAS 1289007-85-7)
- [(1-aminopropan-2-yl)sulfanyl]benzene (CAS 2014-76-8)
- 2-(1-Methyl-2-oxoindolin-3-yl)acetonitrile (CAS 70351-50-7)
- (Ser(PO3H2)202,Thr(PO3H2)205)-Tau Peptide (194-213) trifluoroacetate salt (CAS 2022956-55-2)
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