Remdesivir Impurity 32 CAS CATO-C4X-210032
| CAS No. | CATO-C4X-210032 |
| Molecular Formula | C18H18N5O7P |
| Molecular Weight | 447.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Remdesivir Impurity 32 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.
As a process- or degradation-related impurity, Remdesivir Impurity 32 (CAS CATO-C4X-210032, C18H18N5O7P) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage, Remdesivir Impurity 32 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 447.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C18H18N5O7P |
| Molecular Weight | 447.34 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) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Remdesivir Standards
- Remdesivir Impurity 22 (CAS 2096985-18-9)
- Remdesivir Impurity 23 (CAS 2093124-22-0)
- Remdesivir Impurity 34 (CAS 1354823-37-2)
- Remdesivir Impurity 7 (CAS 1439900-56-7)
- Remdesivir Impurity 8 (CAS 1354823-36-1)
- Remdesivir Impurity 14 (CAS CATO-C4X-210014)
- Remdesivir Impurity 36 (CAS CATO-C4X-210036)
- Remdesivir Impurity 15 (CAS CATO-C4X-210015)
Recommended Standards
- 5-((7-(TRIFLUOROMETHYL)-5-(4-(TRIFLUOROMETHYL)PHENYL)PYRAZOLO[1,5-A]PYRIMIDIN-3-YL)ETHYNYL)PYRIDIN-2-AMINE (CAS 911115-16-7)
- N-(4-Bromophenyl)-2-(4-(5-(thiophen-3-yl)-1,3,4-oxadiazol-2-yl)piperidin-1-yl)acetamide (CAS 1448059-91-3)
- Remimazolam Impurity 11 (CAS CATO-C4X-282311)
- GW-405833 (CAS 180002-83-9)
- Carboxyamidotriazole Impurity 3 HCl (CAS CATO-C4X-21593)
- Chlorphenamine EP Impurity A (DiMaleate) (CAS CATO-C4X-11881)
- Lenvatinib Impurity 151 (CAS 289625-93-0)
- 7-Bromo-4-chloroquinazoline (CAS 573675-55-5)
- 1-[1-(2,2,2-trifluoroethyl)piperidin-4-yl]ethan-1-one hydrochloride (CAS 1803596-34-0)
- 3-Bromo-5-(tert-butyl)benzene-1,2-diamine (CAS 1257831-72-3)
- 4-Cyclopropoxy-5-isopropoxypyridin-2-amine (CAS 1243287-06-0)
- Cefotiam Impurity 40 (CAS CATO-C4X-120440)
- Ethylene Glycol Monoisobutyl Ether (CAS 4439-24-1)
- Peptide Impurity 82 (CAS 10491-78-8)
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