Valaciclovir EP Impurity H CAS 84499-64-9
| CAS No. | 84499-64-9 |
| Molecular Formula | C11H16N6O4 |
| Molecular Weight | 296.28 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.
Valaciclovir EP Impurity H (CAS 84499-64-9) is a certified pharmaceutical impurity reference standard with the molecular formula C11H16N6O4 and a molecular weight of 296.28 g/mol.
Based on its molecular formula C11H16N6O4, Valaciclovir EP Impurity H contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 296.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO manufactures Valaciclovir EP Impurity H under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H16N6O4 |
| Molecular Weight | 296.28 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 methanol, ethanol, DMSO |
| 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.) | 1981 |
| Nitrogen Atoms | 6 |
Related Valaciclovir Standards
- Valaciclovir EP Impurity R (CAS 142963-59-5)
- Valaciclovir EP Impurity R (CAS 142963-60-8)
- Valaciclovir EP Impurity I (CAS 102728-64-3)
- Valaciclovir EP Impurity J (CAS 142963-63-1)
- Valaciclovir EP Impurity C (CAS 1346747-65-6)
- Valaciclovir Impurity 35 (CAS 21691-44-1)
- Valaciclovir Impurity 37 (CAS CATO-C4X-124837)
- Valaciclovir Impurity 42 (CAS 73504-31-1)
Recommended Standards
- Olaparib Impurity 38 (CAS CATO-C4X-113538)
- Levosimendan Impurity 26 (CAS CATO-C4X-130826)
- Azilsartan Impurity 73 (CAS 57113-90-3)
- Levosimendan Impurity 27 (CAS CATO-C4X-130827)
- Allisartan Isoproxil Impurity 7 (CAS CATO-C4X-32177)
- Ethambutol Impurity 15 (CAS CATO-C4X-189415)
- Netupitant Impurity 18 (CAS CATO-C4X-122318)
- Methyl 2-(chlorodifluoromethyl)-1H-benzo[d]imidazole-4-carboxylate 2-chloro-2,2-difluoroacetate (CAS 1956328-52-1)
- Morinidazole Impurity 28 (CAS CATO-C4X-219628)
- 1,1′-[(6R,8R,13aS)-3,11-Bis(1,1-dimethylethyl)-7,8-dihydro-6,8-dimethyl-6H-dibenzo[f,h][1,5]dioxonin-1,13-diyl]bis[1,1-diphenylphosphine] (CAS 1048328-92-2)
- 5-Methyl-4-(methylsulfanyl)furan-2-carboxylic acid (CAS 856122-66-2)
- 2H-Pyran-3-acetic acid, 4-cyano-4-(ethoxycarbonyl)tetrahydro-, ethyl ester (CAS 1956322-77-2)
- tert-Butyl 4-chloro-5-methyl-3-oxo-2,3-dihydrospiro[indene-1,4'-piperidine]-1'-carboxylate (CAS 1007362-96-0)
- Semaglutide Impurity 188 (CAS CATO-C4X-2226188)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com