Rosuvastatin Impurity 104 CAS 1263475-93-9
| CAS No. | 1263475-93-9 |
| Molecular Formula | C16H18FN3O4S |
| Molecular Weight | 367.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H18FN3O4S, Rosuvastatin Impurity 104 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 367.40 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Rosuvastatin Impurity 104 (CAS 1263475-93-9) is a certified pharmaceutical impurity reference standard with the molecular formula C16H18FN3O4S and a molecular weight of 367.40 g/mol.
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.
As a certified reference material (CRM), Rosuvastatin Impurity 104 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 | C16H18FN3O4S |
| Molecular Weight | 367.40 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Rosuvastatin Standards
- Rosuvastatin Impurity 241 (CAS CATO-C4X-1169241)
- Rosuvastatin Impurity 20 (CAS 147118-28-3)
- Rosuvastatin Impurity 99 (CAS CATO-C4X-116999)
- Rosuvastatin Impurity 172 (CAS 1469771-46-7)
- Rosuvastatin Impurity 234 (CAS CATO-C4X-1169234)
- Rosuvastatin Impurity 79 (CAS 1326303-05-2)
- Rosuvastatin Impurity 188 (CAS CATO-C4X-1169188)
- Rosuvastatin Impurity 189 (CAS CATO-C4X-1169189)
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- 2-Phenylbenzo[d][1,3]dioxole-4-carboxylic acid (CAS 35598-91-5)
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